A genus of small freshwater snails of the order Pulmonata, found throughout Africa and the Middle East, where it is a vector of SCHISTOSOMA HAEMATOBIUM.
Marine, freshwater, or terrestrial mollusks of the class Gastropoda. Most have an enclosing spiral shell, and several genera harbor parasites pathogenic to man.
A genus of trematode flukes belonging to the family Schistosomatidae. There are over a dozen species. These parasites are found in man and other mammals. Snails are the intermediate hosts.
Infection with flukes (trematodes) of the genus SCHISTOSOMA. Three species produce the most frequent clinical diseases: SCHISTOSOMA HAEMATOBIUM (endemic in Africa and the Middle East), SCHISTOSOMA MANSONI (in Egypt, northern and southern Africa, some West Indies islands, northern 2/3 of South America), and SCHISTOSOMA JAPONICUM (in Japan, China, the Philippines, Celebes, Thailand, Laos). S. mansoni is often seen in Puerto Ricans living in the United States.
A species of trematode blood flukes of the family Schistosomatidae which occurs at different stages in development in veins of the pulmonary and hepatic system and finally the bladder lumen. This parasite causes urinary schistosomiasis.
Agents destructive to snails and other mollusks.
A human disease caused by the infection of parasitic worms SCHISTOSOMA HAEMATOBIUM. It is endemic in AFRICA and parts of the MIDDLE EAST. Tissue damages most often occur in the URINARY TRACT, specifically the URINARY BLADDER.
Invertebrates or non-human vertebrates which transmit infective organisms from one host to another.
A genus of planorbid freshwater snails, species of which are intermediate hosts of Schistosoma mansoni.
A republic in western Africa, south of NIGER between BENIN and CAMEROON. Its capital is Abuja.
Class of parasitic flukes consisting of three subclasses, Monogenea, Aspidogastrea, and Digenea. The digenetic trematodes are the only ones found in man. They are endoparasites and require two hosts to complete their life cycle.
A transferase that catalyzes the addition of aliphatic, aromatic, or heterocyclic FREE RADICALS as well as EPOXIDES and arene oxides to GLUTATHIONE. Addition takes place at the SULFUR. It also catalyzes the reduction of polyol nitrate by glutathione to polyol and nitrite.
Marked developmental anomalies of a fetus or infant.
The systematic study of the complete complement of proteins (PROTEOME) of organisms.
Structurally related forms of an enzyme. Each isoenzyme has the same mechanism and classification, but differs in its chemical, physical, or immunological characteristics.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.

Techniques for estimating densities of Bulinus truncatus rohlfsi and its horizontal distribution in Volta Lake, Ghana. (1/36)

Bulinus truncatus rohlfsi is the intermediate host of urinary schistosomiasis, which is highly endemic in the man-made Volta Lake. In 1971, a WHO/UNDP schistosomiasis project was established in the Pawmpawm branch and part of the Afram branch of Volta Lake. Malacological findings of the preliminary phase indicated that the snails were distributed in the littoral zone of the lake, and that this distribution was correlated with the presence of vegetation, especially Ceratophyllum. Transmission nearly always occurred in "water contact sites", i.e., places where people come into contact with water.A snail-sampling technique with palm-leaf mats was developed and standardized after it had been shown in sensitivity trials to compare favourably with a modified version of the "man-time" sampling method, in which the number of snails collected per man-hour is recorded. It is recommended that both these methods should be used to conduct ecological studies of B. rohlfsi in water contact sites.  (+info)

A large-scale snail control trial with trifenmorph in the Gezira irrigation scheme, Sudan. (2/36)

A large-scale field trial was carried out during December 1973 to assess the effect of trifenmorph on Bulinus truncatus and Biomphalaria pfeifferi in 379 000 feddans ( approximately 159 000 ha) of the Gezira irrigation system in the Sudan. The commercial formulation used (Frescon) is an emulsifiable concentrate containing 16.5% trifenmorph. Five dispensers were used to add the commercial product to the water continuously for 7.5 days; 18 121 litres were used to treat 28.4 million m(3) of water. In addition, each minor canal was hand-sprayed from the tail to 300 m upstream of the last open field outlet pipe; 360 litres of the commercial formulation were used for this operation.A minimum concentration of 0.035 mg trifenmorph per litre of water was produced at the head of each minor canal. The use of caged snails showed that a concentration as low as 0.015 mg/litre was sufficient to produce 100% mortality in B. truncatus in 7.5 days; this is equivalent to a concentration x time product of 0.12 mg/litre days.  (+info)

Toxic activities of the plant Jatropha curcas against intermediate snail hosts and larvae of schistosomes. (3/36)

The aim of studies on plant molluscicides is to complement methods for controlling snails acting as intermediate hosts of schistosomes. We report on the toxic activity of extracts from Jatropha curcas L. (Euphorbiaceae) against snails transmitting Schistosoma mansoni and S. haematobium. We studied different extracts' effects on infectious larvae, cercariae and miracidia of S. mansoni. Compared to aqueous extract, methanol extract showed the highest toxicity against all tested organisms with LC100-values of 25 p.p.m. for cercariae and the snail Biomphalaria glabrata and 1 p.p.m. for the snails Bulinus truncatus and B. natalensis. Attenuation of cercariae leading to reduced infectivity in mice could be achieved in concentrations below those exerting acute toxicity. In view of our results and the ongoing exploitation of J. curcas for other purposes, this plant could become an affordable and effective component of an integrated approach to schistosomiasis control.  (+info)

Evaluation of environmental methods to control snails in an irrigation system in Central Morocco. (4/36)

The Moroccan Ministry of Public Health has launched a programme to eliminate schistosomiasis. One of the components in this process is the control of Bulinus truncatus, the intermediate host snail of Schistosoma haematobium. We evaluated three environmentally safe measures to control B. truncatus in siphon boxes, the main breeding sites for these snails in the Tessaout Amont irrigation system. The first method involved covering the siphon boxes to exclude light and reduce algal growth, the second consisted of increasing the frequency of emptying and cleaning the siphon boxes, and the third method increased water velocity to hinder the establishment of the intermediate hosts. The results showed that covering had a pronounced effect on snail and egg mass density, was accepted by the local community and prevented water contact. Cleaning the siphons three times during the irrigation season led to a reduction in snail density although it was not statistically significant and recolonization was rapid. Increasing water velocity by reducing the dimensions of siphon boxes delayed recolonization, but such a control measure can be applied only in specific situations where it does not pose hydraulic problems. The three interventions were selectively effective against B. truncatus, whereas other snails such as Physa acuta and Lymnaea peregra were hardly affected. Covering, the most promising control measure, could be useful in the Moroccan schistosomiasis eradication programme. However, further investigations are needed to assess its impact on water quality.  (+info)

PCR-RFLP analysis of the ITS2 region to identify Schistosoma haematobium and S. bovis from Kenya. (5/36)

Schistosoma haematobium, primarily a human parasite, and the closely related Schistosoma bovis from ruminants, are sympatric in many African countries such as Kenya. Because these two species 1) can inhabit the same Bulinus snails, 2) may be found in the same freshwater habitat, and 3) have morphologically similar cercariae, better means are needed to tell them apart. The second internal transcribed spacer (ITS2) region of the ribosomal gene complex (rDNA) of recent Kenyan isolates of both species was sequenced and found to be a 98% match. The S. bovis sequences were nearly identical (99%) to conspecific sequences from Niger; the S. haematobium sequences were nearly identical (99%) to conspecific sequences from Egypt, Mali, and Niger. Restriction fragment length polymorphism (RFLP) analysis of a 480 base pair (bp) PCR product containing the ITS2 region using two restriction enzymes, Taq1 and Sau3A1, yielded species-specific fragment patterns that allowed successful identification of a single S. haematobium cercaria. The protocol outlined here is useful in providing a rapid, one-day identification of S. haematobium (and likely S. bovis) cercariae (the infective larval stage) and/or other life cycle stages in a basic molecular biology laboratory. By helping to determine whether schistosome-infected bulinid snails in a particular body of water are transmitting a human or an animal schistosome, or both, this analysis will aid in disease control and in ongoing epidemiological studies.  (+info)

Studies on the biology of schistosomiasis with emphasis on the Senegal river basin. (6/36)

The construction of the Diama dam on the Senegal river, the Manantali dam on the Bafing river, Mali and the ensuing ecological changes have led to a massive outbreak of Schistosoma mansoni in Northern Senegal, associated with high intensity of infections, due to intense transmission, and the creation of new foci of S. haematobium. Data on the vectorial capacity of Biomphalaria pfeifferi from Ndombo, near Richard Toll, Senegal are presented with sympatric and allopatric (Cameroon) S. mansoni. Comparisons are made on infectivity, cercarial production, chronobiology of cercarial emergence and longevity of infected snails. Recent data on the intermediate host specificity of different isolates of S. haematobium from the Lower and Middle Valley of the Senegal river basin (SRB) demonstrate the existence of at least two strains of S. haematobium. The role of Bulinus truncatus in the transmission of S. haematobium in the Lower and Middle Valleys of the SRB is reviewed. Both S. haematobium and S. mansoni are transmitted in the same foci in some areas of the SRB.  (+info)

Ontogenetic reaction norm for binary traits: the timing of phallus development in the snail Bulinus truncatus. (7/36)

The ontogenetic trajectory of plastic binary traits may provide valuable insights into their evolutionary rate of change. In this paper, the timing of the plastic response of a temperature-dependent sexual polymorphism, aphally, is investigated in the freshwater snail Bulinus truncatus. Aphally is defined as the loss of the male copulatory organ in otherwise hermaphroditic animals. Individuals from two inbred lines were switched at various times during their early development between 25 and 30 degrees C, and their phally status ascertained, in order to evaluate the parameters characterising the ontogenetic reaction norm of aphally to temperature. A series of nested models including parameters for the onset, offset, and the intensity of the response to temperature were fitted to the data, allowing for a wide range of reaction norms. One genotype did not show any variation in aphally ratio with switching temperature, while a switch-point model (onset and offset corresponding to the same developmental point in time) best fitted the second genotype. The results suggest that the plasticity of aphally is expressed before eggs hatch. Their consequences on the evolution of aphally are discussed. More generally, the methodology proposed here can be used to analyse variation in ontogenetic parameters of discrete traits.  (+info)

Identification of snails within the Bulinus africanus group from East Africa by multiplex SNaPshot trade mark analysis of single nucleotide polymorphisms within the cytochrome oxidase subunit I. (8/36)

Identification of populations of Bulinus nasutus and B. globosus from East Africa is unreliable using characters of the shell. In this paper, a molecular method of identification is presented for each species based on DNA sequence variation within the mitochondrial cytochrome oxidase subunit I (COI) as detected by a novel multiplexed SNaPshotTM assay. In total, snails from 7 localities from coastal Kenya were typed using this assay and variation within shell morphology was compared to reference material from Zanzibar. Four locations were found to contain B. nasutus and 2 locations were found to contain B. globosus. A mixed population containing both B. nasutus and B. globosus was found at Kinango. Morphometric variation between samples was considerable and UPGMA cluster analysis failed to differentiate species. The multiplex SNaPshotTM assay is an important development for more precise methods of identification of B. africanus group snails. The assay could be further broadened for identification of other snail intermediate host species.  (+info)

Proteomic identification of an alpha class glutathione S-transferase in freshwater snails (Bulinus globosus): supplementary material
Freshwater snails of the genus Bulinus O. F. Müller, 1781 are intermediate hosts for schistosomes, trematode parasites which cause schistosomiasis. The genus includes closely related species complexes with restricted gene flow between populations of each taxon. Despite their importance as...
d).. This alternation suggests that a uniform conformation of Leu32 is impossible. In the interface between M3 and M4 of YIIIM5AII, where we observe the largest distance between Trp33 Cα atoms, Leu158 CD1 (Leu32 in M3) and Thr202 OG1 (Thr34 in M4) are at van der Waals distances (3.86 and 3.97 Å in chains A and B) because the Leu158 side chain adopts a trans/gauche+ conformation. Therefore, steric hindrance between Leu158 and Thr202 might be responsible for increasing the distance between Trp33 Cα atoms and for the failure to obtain a dArmRP-peptide complex structure. To adopt a Trp33 Cα distance which is similar to the values seen in the major binding site of importin-α, Thr202 OG1 would have to move closer to Leu158, but this approach would require a gauche−/trans conformation of the Leu158 side chain. Of course, surface-exposed side chains (such as Trp33 and Glu30) also adopt different rotamers, but it can be assumed that these differences affect inter-repeat distances to a minor extent ...
Breeding system and demography shape population genetic structure across ecological and climatic zones in the African freshwater snail, Bulinus forskalii (Gastr
Abath, Frederico GC et al. Molecular approaches for the detection of Schistosoma mansoni: possible applications in the detection of snail infection, monitoring of transmission sites, and diagnosis of human infection. Mem. Inst. Oswaldo Cruz, Oct 2006, vol.101, suppl.1, p.145-148. ISSN 0074- ...
Objectives of load flow study are power flow analysis is very important in planning stages of new networks or addition to existing ones like adding new generator sites, meeting increase load demand and locating new transmission sites, the load flow solution gives the nodal voltages and phase angles and hence the power injection at all the buses and power flows through interconnecting power channels, It is helpful in determining the best location as well as optimal capacity of proposed generating station, substation and new lines etc. Thanks to the author of the project and use this for your reference and study only ...
Bithynia tentaculata are dioecious organisms, meaning they have two sexes. Therefore, they must undergo sexual reproduction. Female faucet snails tend to lay eggs anywhere from May to July because the temperature is above 20 C, which is a favorable temperature for typical growth (Dillon and Watson 2006). Eggs are laid in organized rows of two which can range anywhere from 1 to 77 clumps. Clumps of the eggs can be found on hard substrates such as stones. It takes about three weeks to three months for the eggs to hatch depending on the temperature. Once hatched, a faucet snail can live to be about 18 to 39 months old. The overall lifecycle for Bithynia tentacula is very rapid when compared to other snails, taking about a year to complete (EOL).. ...
1971, Feb. 12-1975, Oct. 10. Is DNA all? Duke University, Feb. 12, 1971; University of Colorado, May 8, 1974; University of Minnesota, May 9, 1974; Northwestern May 10, 1974; Harvard, Oct. 21, 1974; Indianapo lis Med Center, Sigma Xi, Oct. 30, 1974; Case Western Reserve, Nov. 11, 1974; University of Maryland, Apr. 17, 1975; Pennsylvania State University, Aspects of the biology of aging, Apr. 28, 1975 and Is DNA all?, Apr. 29, 1975; Kansas State, Oct. 10, 1975 (3 folders ...
Summary A series of tests in semi-balanced tub aquaria and in the field indicated that sodium-pentachlorophenate should be applied at 15 to 20 p.p.m. to assure year round efficient control of Biomphalaria and Bulinus in the irrigation waters of Egypt. Temperature is an important factor in snail control and exerts a great influence on the molluscicidal activity of this toxicant, especially when employed at concentrations of 2 to 10 p.p.m. The concentration of the snail-killing agent should be maintained for 12, and preferably 20 to 24 hours. The molluscicidal activity of the compound against Bulinus and Biomphalaria, and the eggs of the latter, in Egypt was lower than that reported for sodium-pentachlorophenate used with other species of schistosome vectors in different geographical localities and under different environmental circumstances.
TY - JOUR. T1 - Observations on the population dynamics of snail vectors in the delta of the Senegal River Basin. AU - Belot, J. AU - Geerts, S. AU - Diouf, M. N1 - This item is not available in the ITG Library. PY - 1993. Y1 - 1993. KW - B780-tropical-medicine. KW - Malacology. KW - Molluscs. KW - Senegal River Basin. KW - Senegal. KW - Africa-West. M3 - A1: Web of Science-article. VL - 59. SP - 7. EP - 13. JO - Journal of Molluscan Studies. JF - Journal of Molluscan Studies. SN - 0260-1230. ER - ...
Urinary schistosomosis is a serious public health problem prevalent in low-income rural regions of sub-Saharan Africa, including coastal part of Kenya. Praziquantel administration to school-aged children is the prevailing tool of schistosomosis control in these regions. The aim of our study was to find out if this control strategy can lead to interruption of parasite trasmission and disease elimination. During February and March 2018, the occurrence of urinary schistosomosis in volunteers of primary health care facilities in Kwale County, Kenya was examined and the occurrence of infected intermediate hosts Bulinus globosus in local water resources was monitored. Participants completed a questionnaire concerning source of water for household purposes, type of housing and health status and were asked to provide urine samples. Diagnosis of urinary schistosomosis was established by detection of Schistosoma haematobium eggs in urine specimens microscopically, using filtration method. Infected B. ...
The embryonated eggs are passed with urine and less commonly with stool outside the body of the definitive host. If these eggs gain access to water, ciliated miracidium larva hatches out from each egg. The larvae move freely in water in search of intermediate host, which are snails. The snails acting as intermediate host belongs to the genus Bulinus and Planobarius. The miracidium enters into the snails body by penetrating the soft tissues and ultimately reaches the liver. Inside the liver of the snail, the larva loses its cilia and within 4 to 8 weeks transform into the sporocyst. The sporocyst multiplies to form a second generation of sporotocyst. The daughter sporocyst gives rise to forked tail cercaria larva which are infective stage larvae. A single miracidium produces 100,000 to 250,000 cercana. The cercaria larva breaks off from the sporocyst and finally makes its way out of the snail body mo water. Cercariae freely swims into water for 48 hours and during this period if they come in ...
But not too surprising to Dr. Karl-Hans Wurzinger, a DNA expert who testified in the case. You probably remember Dr. Wurzinger from his 1980 dissertation, Allozyme Variation in the African Freshwater Snail Genus Bulinus, if you werent already digging him after 1974s Phylogeny and Correlations of Aldehyde Oxidase, Xanthine Oxidase, Xanthine Dehydrogenase and Peroxidase in Animal Tissues, later made into a not-very-popular film. But he is also known for a 1997 paper on fraternal twins with different fathers.. Basically, this can happen if, in the course of about a week, one blessed event occurs, the female ovulates again, and then she has a second romantic partner who also hits the target. Scientists refer to it as heteropaternal superfecundation but it is known informally as Have None of These People Ever Heard of Birth Control Syndrome. Wikipedia says this is not uncommon in animals, for reasons that probably need not be explained, but Dr. Wurzinger found that it is relatively rare in ...
Globosus amorphus (shapeless mass) is an incomplete twin with a vascular connection to the placenta of its twin. All three primary germ layers are present (ectoderm, mesoderm and endoderm). Roberts SJ (1986) ...
Though they have no spoken language, f lail snails communicate using two different means, both completely silent. The first, an elaborate sign language of waving tentacles, is primarily used for communicating immediate needs, warnings, and other messages that are quickly picked up and passed through the rout. The second and more in-depth form of communication is a complex chemical writing system encoded within the snails slime. Every flail snail has its own unique chemical signature that makes its slime trail immediately recognizable to other snails. Within its trail, each snail records a running dialogue of its thoughts, observations, and memories in a complex interaction of scents that can linger on the stone long after the slime has dried to dust. Other snails can read this dense stream of information and edit it with their own trails, creating a vast, interwoven cultural narrative that at once contains the snails greatest art and the sum of their collective history. Together, the slime ...
Malaria transmission is spatially heterogeneous. This reduces the efficacy of control strategies, but focusing control strategies on clusters or hotspots of transmission may be highly effective. Among 1500 homesteads in coastal Kenya we calculated (a) the fraction of febrile children with positive …
The leftovers from what the snail eats arent always 100% digested, and so there can be a lot of nutrients left over in that waste. Aster. They will also eat fallen fruit, so picking up any windfalls is a good idea. Reading scents is the way they glean information, and there is a certain sweat gland in particular that relays a lot of social information. What color is a dog more attracted to? The problem is this, if your dog eats a slug he can become extremely ill and possibly die. Within their first week of life, fleas ransack their surroundings in search of a blood meal in order to prevent starvation and death. There are specialist and generalist species that eat worms, vegetation, rotting vegetation, animal waste, fungus, and other snails. It seems to follow her about everywhere, but not her husband. Steel is one. If two or more dogs share the same environment and one is found to be infected, the others may be at high risk due to exposure to the same surroundings. You wont see them in the day ...
Snail Race is a racing game. Doing race with other snail is a duty for you and get your winning here. Move your snail by pressing left and right arrow keys, you can also jump the obstacles by using spacebar
p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.,/p> ,p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.,/p> ,p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).,/p> ,p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x,sup>64,/sup> + x,sup>4,/sup> + x,sup>3,/sup> + x + 1. The algorithm is described in the ISO 3309 standard. ,/p> ,p class=publication>Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.,br /> ,strong>Cyclic redundancy and other checksums,/strong>,br /> ,a href=http://www.nrbook.com/b/bookcpdf.php>Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993),/a>),/p> Checksum:i ...
Evolutionary epidemiology of schistosomiasis in the Senegal River Basin: Linking parasite genetics with human infection and disease
I am in need of getting some more snails, prefferably ones who will like to clean the smooth sides of the acrylic aquarium. What does everyone use for this job? And do these snails flip themselves
If you dislike Snails in Aquarium tanks and maybe have suffered from this in the past, we now have an easy solution that looks great too!
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All-year-round attack on snails required.A run of wet winters and moist summers have resulted in snail numbers increasing in many regions. While snails cause problems at crop emergence and harvest, integrated management needs to occur across the seasons.
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practice guideline.. (5) Videoconferencing billing requirements:. (a) Only the transmission site (where the patient is located) may bill for the. transmission: (A) Bill the transmission with Q3014; (B) The referring practitioner may bill an E/M code only if a separately. identifiable visit is performed. The visit must meet all of the criteria of the. E/M code billed. (C) The referring provider is not required to be present with the client at the. originating site.. (b) The evaluating practitioner at the distant site may bill for the ...
Due to the potential risk that bird feeders and bird baths pose as transmission sites for Trichomonas it is recommended that these are emptied and taken down during outbreaks. Remove feeders and baths for at least two weeks to encourage birds to disperse from the area, reducing the potential for disease transmission. There is often plenty of other sources of food and water for birds during the summer months.. Clean and disinfect bird feeders and bird baths thoroughly and regularly. It is recommended that you use a weak solution of household bleach to disinfect feeders and baths. Be sure to rinse feeders and baths well and allow them to dry completely before returning them to use.. Recent research suggests that moist bird seed is a more suitable environment for hosting Trichomonas than dry seed, for this reason it is recommended that you only use bird feeders that prevent feed from becoming wet. Do not use table/platform feeders, these feeders can often expose seed to rain and also allow ...
Due to the potential risk that bird feeders and bird baths pose as transmission sites for Trichomonas it is recommended that these are emptied and taken down during outbreaks. Remove feeders and baths for at least two weeks to encourage birds to disperse from the area, reducing the potential for disease transmission. There is often plenty of other sources of food and water for birds during the summer months.. Clean and disinfect bird feeders and bird baths thoroughly and regularly. It is recommended that you use a weak solution of household bleach to disinfect feeders and baths. Be sure to rinse feeders and baths well and allow them to dry completely before returning them to use.. Recent research suggests that moist bird seed is a more suitable environment for hosting Trichomonas than dry seed, for this reason it is recommended that you only use bird feeders that prevent feed from becoming wet. Do not use table/platform feeders, these feeders can often expose seed to rain and also allow ...
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Mystery Snail Egg Development; Search for: For Sale. Mystery snails lay their eggs above the waters surface. Usually, the eggs are laid on the side or the cover of an aquarium. The gooky stuff that came out is normal also with unmatured clutches. 0:00. Thank you! Invert. Reproduction: Mystery snails need a male and female to reproduce and will lay eggs outside of the water generally in the water line, I have seen them lay eggs on aquarium hoods, as well as inside hang on back filters. 96% Upvoted. A mystery snail can store sperm for months before laying eggs. Viewed 5k times 2. Unlike other snail species, mystery snails arent hermaphrodites that reproduce asexually. If the shell smells foul or rotten, it means the snail is dead. mystery snail eggs. Play. 184. Usually, it would take about 5 weeks for the eggs to hatch. 0:00. Mystery Snail laid eggs in a terrible location-, hatchling health help. I heard a loud *plop* every hour all night. Still have them. The female lays eggs masses above the ...
Five strains of Bacillus pfeifferi were isolated from a case of meningitis. These strains came from the spinal fluid, blood, nose, throat, and nasopharynx.. Immunologic reactions show no definite relations between these strains, although those from the nose, throat, and nasopharynx might be presumed to be related to one another. It is also presumable that the spinal fluid strain was derived from the upper air passages, and that the blood was invaded from the meninges. In spite of immunologic differences, it is believed that the five strains were genetically related.. The variations in these five strains from a single case are as great as those which have been found by others for strains from different cases, or individuals.. As determined by immunologic reactions, the number of so called strains of Bacillus pfeifferi is apparently limited only by the number of cultures which have been or might be isolated. It is inconceivable that under the designation Bacillus pfeifferi is included a ...
Malaria hotspots can be identified that range in size from a few homesteads to a village, and it will be necessary to eliminate hotspots at varying scales as we progress towards eliminating malaria.
We have recently added new products containing snail mucin, also known as snail secretion filtrate, to our offer. We received a number of questions about
SIZE: 10.75 Length An Exquisite Collectible Meticulously Crafted and Masterful Hand-Painted Sculpted and Cast in High Quality Resin
A set of days of the week on images. Great for display purposes, can be used everyday to reinforce the names of the days of the week.
Escar-Go. The active ingredient is iron phosphate which causes the slugs to stop feeding and eventually die. Although it is a pesticide, it is organic, and is therefore non-toxic to humans and pets. It also stays active and solid even after a heavy rain. Just sprinkle small amounts around each plant, and reapply every 10 days ...
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Reaction norms of 45 P[GT1] insertion lines tested at 17°C and 25°C. Values are shown as the deviation of the insert line mean from contemporaneous control li
Come to this conference to hear The Snail Whisperer talk on snails of the Eyre Peninsula. If you are lucky, you can join him on a bioblitz walk where you can find the local snail fauna and learn more about snails. Click here for conference registrations and more information.
Abstract From June 1982 to May 1986 in a small village in Kwale, Kenya, we studied seasonal fluctuations in populations of Bulinus globosus, prevalence of Schistosoma haematobium infection in this snail, and effects of chemotherapy and piped water supply on infection rate of snails. In the perennially-flowing Pemba River, relatively small numbers of snails were collected; they were found only during the hot dry season (December to March). In a tributary stream, the Kadingo River, whose flow ceased at the end of both the cool and hot dry seasons, snail numbers peaked at the end of the cool dry season (October to November) and at the beginning of the hot dry season (January). Large numbers of infected snails were found in the Kadingo River from November to January (short rainy season and beginning of dry season). Selective mass chemotherapy with metrifonate and provision of piped water were begun in February and March 1984. These control measures achieved a significant reduction in the infection rate of
Schistosoma bovis is a ruminant pathogen that is poorly known at a molecular level. With an aim of identifying the parasite proteins involved in host-parasite interplay, we studied two protein extracts that contain, respectively, the proteins excreted/secreted by the adult worm (ES) and the tegumental proteins exposed to the host (TG). The 2-DE, 2-D immunoblot and MS were employed to separate and identify the antigenic proteins and the most abundant non-antigenic proteins in each extract. There were some 400 and 600 spots detected in the ES and the TG extracts, respectively. Ninety-six spots were subjected to MS analysis and 64 of them were identified. Overall, we identified 18 S. bovis proteins located at the host-parasite interface, 16 of which have not been identified previously in this parasite, and one of which -lysozyme- has never been reported in a Schistosoma species. Of the proteins identified, at least 4 can counteract host defence mechanisms. The other proteins are also likely to play ...
This paper presents a new approach to the improvement of informal settlements through limited physical interventions. The main argument in this research is that the benefits of the transformation of urban fabric should be evaluated by a deeper level of interaction between spatial configuration and socio-economic dynamics. The theoretical foundation of this claim is driven from previous research that indicate the significant role of spatial configuration in the gradual self-improvement of informal settlements. A direct implication of such findings is that limited physical interventions as a design method can be used to facilitate the self improvement of informal settlements by increasing their spatial integration to the whole of the city. Furthermore, the transformation of strategically located unplanned areas can also create a positive impact on the urban areas that surround them.. Download the full paper. ...
Compare risks and benefits of common medications used for Schistosoma haematobium. Find the most popular drugs, view ratings, user reviews, and more...
An affiliate site commands the central site to construct a unique broadcast event log through the affiliate sites command browser. The sequenced data stream of broadcast content is combined with a digital artifact inserted into the digitized broadcast video and/or audio content immediately prior to the data transmission process. Transmission to the affiliate site is accomplished utilizing Internet Protocol. Upon reception at the destination, the commercial advertising or prepared program content is input to the affiliate sites system, routed to the broadcast production system, and in turn, processed by the broadcast transmission site, where it is converted from a digital to an analog signal, and transmitted electromagnetically in the radio frequency spectrum by the broadcast transmitter.
Mucor includes at least 39 species, belonging to phylum zygomycota, order Mucorales, Mucoraceae family. M. racemosus was first described and named by Bulliard in 1791.【1】 It is one of the earliest species people discovered in soil and was isolated long time ago--as early as 1886.【2】 M. racemosus has several synonyms such as Calyptromyces globosus, Circinomucor sphaerosporus, M.dimorphosporus f. sphaerosporus, M. globosus, M. macrosporus, M. sphaerosporus and so on. This species is closely related to M. mucedo and M.rouxianus, since they all belong to the same genus and share lots of similar characters.. ...
This is a young blog, and I have a few friends who are diligently reading it and, I hope, enjoying it. I think even a few folks who dont know me personally are checking it out. I started the blog to write about all the snail mail and handwritten loves of my life. I had too much inside me and needed a place to get it out.. I now realize I am not alone.. I know its weird that I didnt look before, but only in the last couple days did I poke around the internet to see if there were other blogs like mine…other snail mail enthusiasts who blogged about wanting to keep snail mail alive. And there ARE! There are a lot more than I thought. This is wonderful!. Apparently there are a lot of us avid letter writers who think Im the only one who writes letters any more. So we think that were writing and mailing away all on our own. But the beauty of the internet is that you can always find like-minded souls out there fervently in love with the same things you adore. We can build a far-flung ...
Chestnut Turbo Snail is an elegant, yet functional, addition to any reef aquarium. Like other snails, Turbo castanae is a powerhouse when it comes to cleaning algae and detritus from your aquarium. And like other members of the Turbinidae family, the Chestnut Turbo Snail boasts the same turbinate, or top-shaped shell.
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith ...
In ecology and genetics, a reaction norm, also called a norm of reaction, describes the pattern of phenotypic expression of a single genotype across a range of environments. One use of reaction norms is in describing how different species-especially related species-respond to varying environments. But differing genotypes within a single species may also show differing reaction norms relative to a particular phenotypic trait and environment variable. For every genotype, phenotypic trait, and environmental variable, a different reaction norm can exist; in other words, an enormous complexity can exist in the interrelationships between genetic and environmental factors in determining traits. The concept was introduced by Richard Woltereck. Scientifically analyzing norms of reaction in natural populations can be very difficult, simply because natural populations of sexually reproductive organisms usually do not have cleanly separated or superficially identifiable genetic distinctions. However, seed ...
Lupinus truncatus, a dicot, is an annual herb that is native to California and is found only slightly beyond California borders. ...
Natural, Humane, Snail And Slug Control To Protect Seedlings Protecting your organic seedlings from being eaten by slugs and snails no sooner than you plant them out in your vegetable patch is a real challenge. I have tried many different types of humane deterrents, some with more success than others; e.g. vege net, egg shells, copper […] ...
남방큰돌고래(Indo-Pacific bottlenose dolphin, 학명: Tursiops aduncus) 또는 인도태평양병코돌고래는 큰돌고래속에 속하는 돌고래 종의 하나이다.[2] 이 돌고래는 몸길이는 2.6m, 몸무게 230kg까지 성장한다.[3] 인도와 오스트레일리아 북부, 중국 남부 연안, 홍해 그리고 아프리카 동부 연안 ,제주도 연안등에서 서식한다.[3] 등 쪽은 어두운 회색을 띠며, 배 쪽은 회색 반점과 함께 밝은 회색 또는 흰색에 가까운 색깔을 띤다.[3] 1998년까지는 큰돌고래속(병코돌고래속) 종으로 큰돌고래( T. truncatus)가 유일한 것으로 간주해왔으나, 1998년에 남방큰돌고래를 별도의 종으로 인정했다.[4][5] 남방큰돌고래는 일반적으로 큰돌고래(커먼큰돌고래)보다 작고, 부리는 더 길고 균형이 잡혀 있으며, 배 쪽과 아래 쪽에 반점을 갖고 있다.[4][6] 또한 큰돌고래가 각각의 턱에 21~24개의 이빨을 갖고 ...
ABF-2014-055 Clavariadelphus truncatus. http://www.indexfungorum.org/Names/NamesRecord.asp?RecordID=280782. AgaricomycetesAgaricomycotinaBasidiomycotaClavariadelphaceaeFungiGomphalesPhallomycetidae ...
"Bulinus camerunensis". IUCN Red List of Threatened Species. Retrieved 14 February 2013.old-form url "Lymnaea natalensis". IUCN ... Molluscs Some of the non-marine molluscs species found in the wild in Cameroon are: Bulinus camerunensis, an endangered species ...
Bulinus globosus (Morelet, 1866) Bulinus senegalensis Müller, 1781 Gyraulus costulatus (Krauss, 1848) Segmentorbis kanisaensis ... Appleton C., Ghamizi M., Jørgensen A., Kristensen T. K., Ngereza C., Stensgaard A-S. & Van Damme D. (2009). Bulinus forskalii. ... Kristensen T. K. & Stensgaard A-S. (2006). Bulinus senegalensis. In: IUCN 2010. IUCN Red List of Threatened Species. Version ... Planorbidae Africanogyrus coretus (de Blainville, 1826) Biomphalaria camerunensis (C. R. Boettger, 1941) Bulinus forskalii ( ...
Kyambadde R. (2004). Bulinus mutandensis. 2006 IUCN Red List of Threatened Species. Downloaded on 6 August 2007. Appleton C., ... Planorbidae Africanogyrus coretus (de Blainville, 1826) Bulinus mutandensis Preston, 1913 - endemic Lymnaeidae Radix natalensis ...
Bulinus senegalensis O. F. Müller, 1781 Bulinus truncatus (Audouin, 1827) - synonym: Bulinus rohlfsi Clessin Bulinus ... Bulinus camerunensis Mandahl-Barth, 1957 Bulinus forskalii (Ehrenberg, 1831) Bulinus globosus (Morelet, 1866) Bulinus ... Akinwale O., Oso O., Salawu O., Odaibo A., Tang P., Chen T.-W. & Gyang P. (2015). "Molecular characterisation of Bulinus snails ... Betterton C., Fryer S. E. & Wright C. A. (1983). "Bulinus senegalensis (Mollusca: Planorbidae) in northern Nigeria". Annals of ...
Freshwater gastropods in Somalia include: Planorbidae Bulinus abyssinicus (von Martens, 1866) Lymnaeidae Radix natalensis ( ... Bulinus abyssinicus. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.1. . Downloaded on 21 June 2011. Appleton ...
Brown D. S. (1996). Bulinus cernicus. 2006 IUCN Red List of Threatened Species. Retrieved 6 August 2007. Brown D. S. (1996). ... endemic Bulinus cernicus Morelet, 1867 Gyraulus mauritianus Morelet - endemic Pomatiidae Tropidophora articulata (Gray, 1834 ...
Bulinus camerunensis Mandahl-Barth, 1957 Bulinus forskalii (Ehrenberg, 1831) Bulinus globosus (Morelet, 1866) Bulinus ... Bulinus camerunensis. 2006 IUCN Red List of Threatened Species. Downloaded on 6 August 2007. Appleton C., Ghamizi M., Jørgensen ...
Bulinus hexaploidus Bulinus octaploidus Lymnaeidae Radix natalensis (Krauss, 1848) Lists of molluscs of surrounding countries: ... Van Damme D. (2008). Bulinus abyssinicus. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.1. . Downloaded on ... Planorbidae Ancylus ashangiensis Ancylus regularis Biomphalaria barthi Bulinus abyssinicus (von Martens, 1866) ...
1774 Bulinus truncatus (Audouin, 1827) Hippeutis complanatus Linnaeus, 1758 Sphincterochilidae Sphincterochila candidissima ( ... Bulinus truncatus. The IUCN Red List of Threatened Species 2018: e.T99507883A120114540. https://dx.doi.org/10.2305/IUCN.UK.2018 ...
This article incorporates CC-BY-3.0 text from the reference Sowerby G. B. (1838). "The conchological illustrations, Bulinus, ...
Freshwater snails of the genus Bulinus are an important intermediate host for this parasite. Among final hosts humans are most ... Known snail intermediate hosts include Bulinus forskalii. S. haematobium, commonly referred to as the bladder fluke, originally ...
Cridland, C. C. (1967). "Resistance of Bulinus (Physopsis) globosus, Bulinus (Ph.) africanus, Biomphalaria pfeifferi and ... Nguma, J. F.; McCullough, F. S.; Masha, E. (1982). "Elimination of Biomphalaria pfeifferi, Bulinus tropicus and Lymnaea ...
Chu K. Y., Massoud J. & Arfaa F. (1968). "Distribution and Ecology of Bulinus truncatus in Khuzestan, Iran". Bulletin of the ... Planorbidae Bulinus truncatus (Audouin, 1827) Planorbis intermixtus Mousson, 1874 Planorbis carinatus O. F. Müller, 1774 Anisus ...
The tiny Bulinus snails are hosts for Schistosoma haematobium. Lymnaeid snails (Lymnaeidae) serve as hosts for Fasciola and the ...
S bovis is mostly transmitted by Bulinus freshwater snail species. It is one of nine haematobium group species and exists in ... Miracidia penetrate into the intermediate host, the freshwater snails of the Bulinus spp., (e.g. B. globosus, B. forskalii, B. ... Bulinus sp. and Planorbarius sp.). In water, its free swimming infective larval cercariae can burrow into the skin of its ... Bulinus truncatus, B. wright and Planorbarius metidjensis". Int J Parasitol. 17 (8): 1431-4. doi:10.1016/0020-7519(87)90078-6. ...
Bulinus snails (including the near-endemic B. camerunensis) infested with Schistosoma, which causes the disease bilharzia in ... population dynamics and schistosome infection in Bulinus spp. from a crater lake in the South West Province of Cameroon. ...
The most phylogenetically related genus to Indoplanorbis is genus Bulinus. The freshwater snail Indoplanorbis exustus is found ...
Bulinus globosus (Morelet, 1866) Bulinus natalensis (Küster, 1841) Bulinus reticulatus Mandahl-Barth, 1954 Bulinus tropicus ( ... Appleton C., Curtis B., Jørgensen A., Kristensen T. K., Lange C. N., Stensgaard A-S. & Van Damme D. (2009). Bulinus africanus. ... Appleton C., Lange C. N., Kristensen T. K., Stensgaard A-S. & Van Damme D. (2009). Bulinus reticulatus. In: IUCN 2010. IUCN Red ... Curtis B., Jørgensen A., Kristensen T. K., Lange C. N., Stensgaard A-S. & Van Damme D. (2009). Bulinus tropicus. In: IUCN 2010 ...
Bulinus, Gabbiella, Lanistes and Melanoides. Lake Malawi is home to a total of four snail species in the genus Bulinus, which ... ISBN 0-7484-0026-5 Wright, C. A.; Klein, J.; Eccles, D. H. (1967). "Endemic species of Bulinus (Mollusca: Planorbidae) in Lake ...
skin exposure to water contaminated with infected Bulinus sp. snails Schistosomiasis by Schistosoma japonicum Schistosoma ...
... is home to 28 species of freshwater snails (e.g., Bellamya, Biomphalaria, Bulinus, Cleopatra, Gabbiella, and ... Two of the snail genera, Biomphalaria and Bulinus, are intermediate hosts of the parasite bilharzia (schistosomiasis). Human ...
... species of Bulinus. The larvae live in water bodies from where they infect the hosts by penetrating the skin. Adults are found ...
... there are 4 species of Bulinus: Bulinus bavayi - endemic Bulinus forskalii - introduced Bulinus liratus - endemic Bulinus ... Stothard, J. R.; Brémond, P.; Andriamaro, L.; Sellin, B.; Sellin, E.; Rollinson, D. (2001). "Bulinus species on Madagascar: ...
Bulinus contortus. Michaud, 1829. ........... ........... En Wikimedia Commons: Category:Bulinus Bulla striata. Bruguière, 1792 ...
2006). "The schistosome intermediate host, Bulinus nyassanus, is a 'preferred' food for the cichlid fish, Trematocranus ... 2011). "The burrowing behaviour of Bulinus nyassanus, intermediate host of Schistosoma haematobium, in Lake Malaŵi". African ... It feeds mainly on aquatic snails and has a preference for Bulinus nyassanus, making this cichlid beneficial to humans as that ...
1908 Planorbidae Bulinus africanus (Krauss, 1848) Bulinus globosus (Morelet, 1866) Land gastropods in Zambia include: ... Brown D. S. & Rollinson D. (1996). "Aquatic snails of the Bulinus africanus group in Zambia identified according to morphometry ...
Brown D. S., Curtis B. A. & Rollinson D. (1996). "The freshwater snail Bulinus tropicus (Planorbidae) in Namibia, characterised ... Freshwater gastropods in Namibia include 26 species in 9 families: Planorbidae Bulinus tropicus (Krauss, 1848) Land gastropods ...
Species of snail belonging to the genus Bulinus, including B. globosus, B. forskalii, B. nasutus, B. nyassanus, and B. ... now Bulinus) and Planorbis, which were collected from El Marg canal near Cairo; proving that snails are the intermediate hosts ... "Interactions between intermediate snail hosts of the genus Bulinus and schistosomes of the Schistosoma haematobium group". ...
Most common intermediate hosts are snails belonging to the genera Bulinus, Planorbis, Physa Stagnicola and Pseudosuccinea. When ...
A methanolic extract from the roots shows molluscicidal results in Bulinus globosus, the intermediate host in schistosomiasis. ...
Bulinus jousseaumei is a species of tropical freshwater snail, an aquatic gastropod mollusk in the family Planorbidae, the ... The distribution of Bulinus jousseaumei includes Western Africa: Burkina Faso Gambia Mali Niger Nigeria Senegal Togo The type ... The male part of the reproductive system is developed "slightly earlier" (protandry) in Bulinus jousseaumei. This species is an ... Kristensen T. K. & Stensgaard A.-S. (2006). Bulinus jousseaumei. In: IUCN 2011. IUCN Red List of Threatened Species. Version ...
Bulinus hightoni is a species of freshwater snail, an aquatic gastropod mollusk in the family Planorbidae, the rams horn ... Lange C. N. & Ngereza C. (2004). Bulinus hightoni. 2006 IUCN Red List of Threatened Species. Archived June 27, 2014, at the ...
Physiological studies on Biomphalaria alexandrina and Bulinus truncatus, the snail vectors of Schistosommiasis ... Laboratory studies on Biomphalaria alexandrina (Ehrenberg) and Bulinus (Bulinus) truncatus truncatus (Audouin), the ... Laboratory studies on Biomphalaria alexandrina (Ehrenberg) and Bulinus (Bulinus) truncatus truncatus (Audouin), the ... Some helminths of Bulinus truncatus and Biomphalaria alexandrina from the irrigation system near Cairo. Folia Parasitologica 21 ...
Carbohydrate metabolism in uninfected and trematode-infected snails Biomphalaria alexandrina and Bulinus truncatus ... Laboratory studies on Biomphalaria alexandrina (Ehrenberg) and Bulinus (Bulinus) truncatus truncatus (Audouin), the ... Laboratory studies on Biomphalaria alexandrina (Ehrenberg) and Bulinus (Bulinus) truncatus truncatus (Audouin), the ... Effects of some heavy metals on the fecundity, egg-hatching and growth rate of the freshwater snails Bulinus truncatus and ...
A brief account is given of the geographical distribution and habitats of Bulinus reticulatus as reflected by the 278 samples ... A brief account is given of the geographical distribution and habitats of Bulinus reticulatus as reflected by the 278 samples ... n African Zoology - Geographical distribution and habitats of the freshwater snail Bulinus reticulatus and its susceptibility ... Keyword(s) : Bulinus reticulatus, Epidemiology of schistosomiasis, Experimental infection, Geographical distribution and ...
Potential of Lanistes varicus in limiting the population of Bulinus truncatus *Francis Anto1Email authorView ORCID ID profile ... Bulinus truncatus snails were collected from the Tono irrigation canals in the Kassena-Nankana district of northern Ghana (10° ... Lanistes varicus Bulinus truncatus Schistosoma haematobium Tono irrigation systemBiological control. Introduction. Human ... To determine the ability of the Ampullariid, Lanistes varicus to prey on egg masses and juveniles of Bulinus truncatus snails, ...
Bulinus tropicus was dominating, Bulinus forskalii was found in two lakes and Bulinus truncatus in one. The latter two species ... However, Bulinus tropicus is an important species for schistosomiasis transmission in ruminants. Bulinus tropicus comprised 31 ... This first detailed malacological study of the crater lakes systems in western Uganda revealed presence of Bulinus species that ... Out of the 58 crater lakes surveyed, three species of Bulinus snails were found in 34 crater lakes. ...
Bulinus aquaria maintained the research group of Philippe Jarne, at the CEFE, University of Montpellier, France. ... Montpellier 2009: Jarne Lab Snail Aquaria Bulinus MA-4 Primary tabs. *View(active tab) ...
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith ...
Bulinus spp., Lymnaea spp., Pomaecea spp., and more. Apart from humans, aberrant infections have occurred in several species of ...
Right: Bulinus sp., the intermediate host for S. haematobium and S. intercalatum. (Credit: DPDx) ...
Freshwater snails of the genus Bulinus O. F. Müller, 1781 are intermediate hosts for schistosomes, trematode parasites which ... Subdivisione su base morfologica e genetica del genere Bulinus in tre ge-neri: Bulinus Muller, Physopsis Krauss e ... Four Bulinus species, namely B. globosus (Morelet, 1866), B. forskalii (Ehrenberg, 1831), B. camerunensis Mandahl-Barth, 1957 ... Phylogeny of seven Bulinus species originating from endemic areas in three African countries, in relation to the human blood ...
Bulinus globosus is a freshwater snail that serves as intermediate host for Schistosoma haematobium and is known to be drought- ... Proteomic identification of an alpha class glutathione S-transferase in freshwater snails (Bulinus globosus): supplementary ... Proteomic identification of an alpha class glutathione S-transferase in freshwater snails (Bulinus globosus) ... Proteomic identification of an alpha class glutathione S-transferase in freshwater snails (Bulinus globosus) ...
f. Physopsis globosus, Ghana; g. Bulinus truncatus, Ghana. h. Ascocotyle metacercaria from heart of Liza ramada, Israel. i. ... 1. Ecology of Bulinus (Physopsis) globosus the snail host of Schistosoma haematobium in South East Ghana. Ghana J. Science, 8: ... Water bodies from the Jordan system throughout the Nile to the Rift Valley lakes share common snails (Bulinus truncatus, same ... Bulinus truncatus, the snail host of Bolbophorus levantinus was found shedding 7 weeks after being placed with freshly laid ...
A study of the compatibility between Schistosoma intercalatum from Cameroon and its potential vectors Bulinus forskalii from ... Further data on the compatibility between Schistosoma intercalatum (lower Guinea strain) and Bulinus forskalii: epidemiological ...
... ... The aim of this study was to establish the effects of the Bt toxin on fecundity, development and growth of Bulinus tropicus, a ...
The lethal effect of ambrosia maritima [damsissa]on bulinus deccarii from Gizan, Saudi Arabia Authors ... Citation: Mohamed F. El Sawy , The lethal effect of ambrosia maritima [damsissa]on bulinus deccarii from Gizan, Saudi Arabia, J ... A concentration of 1000 ppm, w/v was found to have a quite lethal effect on Bulinus beccarii snails in the laboratory ... Experimentations were carried out to determine the effect of Ambrosia maritima [damsissa] on Bulinus beccarii, the vector of ...
Calado, M. M. P., Afonso, A. J. P. F. S., & Grácio, M. A. A. (2010, Jan 1). Morphometry and genetic analyzes of Bulinus ... Calado, MMP, Afonso, AJPFS & Grácio, MAA 2010, Morphometry and genetic analyzes of Bulinus globosus (Gastropoda:Planorbidae) ... Morphometry and genetic analyzes of Bulinus globosus (Gastropoda:Planorbidae) from region of Bengo, Angola. / Calado, Maria ... Morphometry and genetic analyzes of Bulinus globosus (Gastropoda:Planorbidae) from region of Bengo, Angola. 2010. ...
Cycle évolutif du Schistosoma bovis (Bilharzia crassa); infection spontanée de Bulinus contortus en Corse C.-R. Acad. Sci. 1929 ... In a more comprehensive study (9), Bulinus snails were found in all of Corsicas coastal rivers, except for those in the ... Infection naturelle en Corse et infection expérimentale de Bulinus contortus. Ann Parasitol Hum Comp. 1930;VIII:17-50. ... Bulinus snails were identified in 4 rivers, the Rizzanese, Baraci, Ortolo and Spartano, especially in residual ponds of ...
Simulation of population dynamics of Bulinus globosus: Effects of environmental temperature on production of Schistosoma ... Bulinus globosus climate change schistosomiasis control programmes life history traits Schistosoma haematobium cercariae ... Simulation of population dynamics of Bulinus globosus: Effects of environmental temperature on production of Schistosoma ...
Bulinus truncatus, was studied using four variable microsatellite loci. A substantial polymorphism mainly distributed among ... Strong genetic structure in Cameroonian populations of Bulinus truncatus (Gastropoda: Planorbidae), intermediate host of ... Bulinus truncatus, was studied using four variable microsatellite loci. A substantial polymorphism mainly distributed among ... Strong genetic structure in Cameroonian populations of Bulinus truncatus (Gastropoda: Planorbidae), intermediate host of ...
The immunological response of South African Bulinus natalensis antigens to diploid and polyploid Bulinus antisera. Zoologica ... Infection of diploid Bulinus s.s. with Schistosoma haematobium. Malacological Review, 3(2): 121-126. [C.T. Lo, John B. Burch & ... Bulinus sericinus (Gastropoda: Planorbidae) from Ethiopia. Malacological Review, 8(1/2): 31-46 S.-K. Wu & John B. Burch]. ... The Snail Genus Bulinus: Factors Concerned with its Transmission of Schistosomiasis in Africa. National Institutes of Health, ...
keywords = "Bulinus forskalii, gene flow, metapopulation, microsatellites, null allele, self-fertilization, MATING SYSTEM, ... Bulinus forskalii (Gastropoda, Pulmonata), intermediate host for schistosomes, Molecular Ecology, vol. 13, no. 11, pp. 3561- ... Bulinus forskalii (Gastropoda, Pulmonata), intermediate host for schistosomes. Molecular Ecology. 2004 Nov;13(11):3561-3573. ... Bulinus forskalii (Gastropoda, Pulmonata), intermediate host for schistosomes. In: Molecular Ecology. 2004 ; Vol. 13, No. 11. ...
Results: Out of 1,257 screened Bulinus truncatus, 187 (14.9%) shed four types of cercariae. The highest prevalence of natural ... Results: Out of 1,257 screened Bulinus truncatus, 187 (14.9%) shed four types of cercariae. The highest prevalence of natural ... Results: Out of 1,257 screened Bulinus truncatus, 187 (14.9%) shed four types of cercariae. The highest prevalence of natural ... Results: Out of 1,257 screened Bulinus truncatus, 187 (14.9%) shed four types of cercariae. The highest prevalence of natural ...
Sequences clustered into two lineages; (A) groups Bulinus truncatus, B. tropicus, B. globosus and B. umbilicatus; while (B) ... Interesting patterns emerge regarding schistosome susceptibility: Bulinus species with lower genetic diversity are predicted to ... 18S and 28S genes to investigate the haplotype diversity and phylogeny of seven Bulinus species originating from three endemic ... The cox1 region showed much more variation than the ribosomal markers within Bulinus sequences. High levels of genetic ...
a] To determine the natural infection rate of Bulinus truncatus and Biomphalaria pfeifferi snails with trematodes cercariae. [ ... Out of 1,257 screened Bulinus truncatus, 187 [14.9%] shed four types of cercariae. The highest prevalence of natural infection ... Laboratory studies on the prevalence and cercarial rhythms of trematodes from Bulinus truncatus and Biomphalaria pfeifferi ... Laboratory studies on the prevalence and cercarial rhythms of trematodes from Bulinus trun ...
Overall, 413 Bulinus truncatus, 369 Bulinus forskalii and 108 Biomphalaria pfeifferi snails were collected and subjected to ... The spatial and seasonal distribution of Bulinus truncatus, Bulinus forskalii and Biomphalaria pfeifferi, the intermediate host ... schistosomiasis, intermediate host snail, Bulinus truncatus, Bulinus forskalii, Biomphalaria pfeifferi, spatio- temporal ... The spatial and seasonal distribution of Bulinus truncatus, Bulinus forskalii and Biomphalaria pfeifferi, the intermediate host ...
2008) Schistosoma haematobium in Lake Malawi: susceptibility and molecular diversity of the snail hosts Bulinus globosus and B ... 2008) Schistosoma haematobium in Lake Malawi: susceptibility and molecular diversity of the snail hosts Bulinus globosus and B ...
KEYWORDS: Bulinus truncatus; Schistosoma Haematobium Miracidia; Sesbania sesban Plant JOURNAL NAME: Advances in Biological ... TITLE: Biological and physiological parameters of Bulinus truncatus snails exposed to methanol extract of the plant Sesbania ... egg laying of Bulinus truncatus snails, hatchability of their eggs, infection rate with Schistosoma haemato- bium miracidia, ...
  • The rate of gluconeogenesis was decreased to 62% in Bulinus truncatus infected with Schistosoma haematobium and to 45% in Biomphalaria alexandrina infected with S. mansoni. (eurekamag.com)
  • Based on extensive field sampling in western Uganda and beyond and employing an approach using sequences of the mitochondrial barcoding gene cytochrome c oxidase subunit 1 ( cox 1) this study aims were: (i) identification and establishment of the phylogenetic affinities of Bulinus species as potential hosts for Schistosoma spp. (biomedcentral.com)
  • Bulinus globosus is a freshwater snail that serves as intermediate host for Schistosoma haematobium and is known to be drought-tolerant. (figshare.com)
  • A study of the compatibility between Schistosoma intercalatum from Cameroon and its potential vectors Bulinus forskalii from Cameroon, Equatorial Guinea, Ivory Coast and Niger has been carried out. (schisto.com)
  • Experimentations were carried out to determine the effect of Ambrosia maritima [damsissa] on Bulinus beccarii, the vector of Schistosoma hematobium in Saudi Arabia. (who.int)
  • As part of the same study, slaughterhouse examination of 15 cattle from regions where Bulinus snails had been discovered revealed adult Schistosoma in the mesenteric and vesical veins, as well as in the liver and the portal system. (cdc.gov)
  • However, of the 55 bodies of water where Bulinus snails were found, only 1 contained gastropods with Schistosoma cercariae, and results of a search for blood flukes in 220 small rodents (known for being susceptible to S. bovis and captured near bodies of water where Bulinus snails had been observed) were negative. (cdc.gov)
  • Strong genetic structure in Cameroonian populations of Bulinus truncatus (Gastropoda: Planorbidae), intermediate host of Schistosoma haematobium. (archives-ouvertes.fr)
  • The role of breeding system and population bottlenecks in shaping the distribution of neutral genetic variation among populations inhabiting patchily distributed, ephemeral water bodies was examined for the hermaphroditic freshwater snail Bulinus forskalii, intermediate host for the medically important trematode Schistosoma guineensis. (elsevier.com)
  • Snails species belonging to the genus Bulinus (Planorbidae) serve as intermediate host for flukes belonging to the genus Schistosoma (Digenea, Platyhelminthes). (biomedcentral.com)
  • Snails of the genus Bulinus (Müller, 1781) serve as intermediate hosts for larval development of the parasite species belonging to the Schistosoma haematobium species group in Africa, the Eastern Mediterranean and Madagascar [ 1 ], as for other Trematode species like paramphistomes. (biomedcentral.com)
  • ABSTRACT: The effects of sublethal concentrations of methanol extract of sesbania sesban plant on survival rate, egg laying of Bulinus truncatus snails, hatchability of their eggs, infection rate with Schistosoma haemato- bium miracidia, cercarial production and certain physiological parameters of treated snails were stu- died. (scirp.org)
  • From June 1982 to May 1986 in a small village in Kwale, Kenya, we studied seasonal fluctuations in populations of Bulinus globosus , prevalence of Schistosoma haematobium infection in this snail, and effects of chemotherapy and piped water supply on infection rate of snails. (ajtmh.org)
  • Biological activity of artemisinin-naphthoquine phosphate on Schistosoma haematobium stages and the vector Bulinus truncatus. (annals.org)
  • The presence of many snail species especially the Bulinus species, and increased contact time with the Schistosoma haematobium infested freshwater habitat were thought to be responsible for the prevalence of the disease in the area. (ispub.com)
  • Here, we investigate whether crayfish can reduce populations of Bulinus africanus and consequently, Schistosoma haematobium prevalence in school children. (nih.gov)
  • Host-parasite relationship of Bulinus forskalii (Ehrenberg) and Schistosoma intercalatum Fisher 1934, from Cameroun. (semanticscholar.org)
  • Before this case, human schistomiasis had not been reported on the island, although its vector, the snail Bulinus truncatus, locally transmitted the zoonotic Schistosoma bovis. (eurosurveillance.org)
  • The Bulinus and Biomphalaria snails serve as intermediate hosts for Schistosoma haematobium and Schistosoma mansoni, which are the causative agents of urinary and intestinal schistosomiasis in humans, respectively. (academicjournals.org)
  • While Biomphalaria glabrata and Biomphalaria pfeifferi snails can be infected with S. mansoni (responsible for human intestinal schistosomiasis), Planorbarius metidjensis is responsible for the transmission of Schistosoma bovis , and Bulinus truncatus snails are natural hosts for S. bovis as well as S. haematobium (agent of the human urinary schistosomiasis). (frontiersin.org)
  • Objectives: (a) To determine the natural infection rate of Bulinus truncatus and Biomphalaria pfeifferi snails with trematodes' cercariae. (elsevier.com)
  • Those belonging to Bulinus and Biomphalaria were examined for cercarial shedding. (geospatialhealth.net)
  • Overall, 413 Bulinus truncatus, 369 Bulinus forskalii and 108 Biomphalaria pfeifferi snails were collected and subjected to cercarial shedding. (geospatialhealth.net)
  • The parasitic infection is transmitted through freshwater snail vectors ( Biomphalaria and Bulinus species). (who.int)
  • A total of 978 Bulinus globosus and 3612 Biomphalaria pfefferi were recorded in Makwaye reservoir with high abundance in dry season while a total of 163 B. globosus and 602 B. pfefferi was recorded in Kubanni reservoir with higher abundance in wet season. (banglajol.info)
  • Bulinus globosus, Bulinus africanus, Biomphalaria pfeifferi , see text above for additional intermediate snail host. (iamat.org)
  • Snails of the genera Biomphalaria, Bulinus, Neotricula , and Oncomelania are the principal intermediate hosts for S mansoni, S haematobium, S mekongi, and S japonicum, respectively. (medscape.com)
  • The parasite larvae then develop and multiply inside different freshwater snails, including Bulinus and Biomphalaria species , before re-entering the water. (yourgenome.org)
  • Morphometry and genetic analyzes of Bulinus globosus (Gastropoda:Planorbidae) from region of Bengo, Angola. (unl.pt)
  • To determine the ability of the Ampullariid, Lanistes varicus to prey on egg masses and juveniles of Bulinus truncatus snails, an intermediate host of urogenital schistosomiasis in West Africa. (biomedcentral.com)
  • However, Bulinus tropicus is an important species for schistosomiasis transmission in ruminants. (biomedcentral.com)
  • This first detailed malacological study of the crater lakes systems in western Uganda revealed presence of Bulinus species that are either not known or not regionally known to be hosts for S. haematobium , the causing agent of human urogenital schistosomiasis. (biomedcentral.com)
  • A negligible amount of studies have been conducted on urogenital schistosomiasis and S. haematobium and their planorbid host snails belonging to the genus Bulinus . (biomedcentral.com)
  • Freshwater snails of the genus Bulinus O. F. Müller, 1781 are intermediate hosts for schistosomes, trematode parasites which cause schistosomiasis. (foliamalacologica.com)
  • In any case, the discovery of human cases of schistosomiasis proves that a human- Bulinus parasitic cycle exists in Corsica, and therefore an animal- Bulinus cycle may exist as well. (cdc.gov)
  • Malacological survey shows that Bulinus truncatus can be responsible of transmission of urinary schistosomiasis. (ajol.info)
  • Implication of Bulinus truncatus in the transmission of urinary schistosomiasis in Senegal, West Africa. (ugent.be)
  • 4,8 Schistosomiasis is transmitted to humans via cercariae released from the Bulinus snail. (scielo.org.za)
  • Since urogenital schistosomiasis is contracted through total or partial immersion of the body in water containing the immature form of the S. haematobium parasite hosted by the Bulinus snail, the Agency has been asked to conduct an expert assessment of the ecology of this mollusc. (anses.fr)
  • Bulinus tropicus was dominating, Bulinus forskalii was found in two lakes and Bulinus truncatus in one. (biomedcentral.com)
  • Bulinus tropicus comprised 31 haplotypes while both B. forskalii and B. truncatus exhibited only a single haplotype in the crater lakes. (biomedcentral.com)
  • Bulinus jousseaumei is a species of tropical freshwater snail, an aquatic gastropod mollusk in the family Planorbidae, the ramshorn snails and their allies. (wikipedia.org)
  • The distribution of Bulinus jousseaumei includes Western Africa: Burkina Faso Gambia Mali Niger Nigeria Senegal Togo The type locality for this species is the Sénégal River close to Médine, Mali. (wikipedia.org)
  • Bulinus hightoni is a species of freshwater snail, an aquatic gastropod mollusk in the family Planorbidae, the ram's horn snails. (wikipedia.org)
  • Out of the 58 crater lakes surveyed, three species of Bulinus snails were found in 34 crater lakes. (biomedcentral.com)
  • Molecular approaches to the identification of Bulinus species in South-West Nigeria and observations on natural snail infections with schistosomes. (foliamalacologica.com)
  • The presence of Bulinus truncatus contortus (Michaud) ( Mollusca, Gastropoda, Hygrophila ) snails was mentioned as early as 1832, and the species was formally identified in 1922 in Corsica. (cdc.gov)
  • In the present study, we used the partial mitochondrial cytochrome oxidase subunit I (cox1) gene, and the nuclear ribosomal ITS, 18S and 28S genes to investigate the haplotype diversity and phylogeny of seven Bulinus species originating from three endemic countries in Africa (Cameroon, Senegal and Egypt). (biomedcentral.com)
  • Bulinus species with lower genetic diversity are predicted to have higher infection prevalence than those with greater diversity in host susceptibility. (biomedcentral.com)
  • The interpretation of these specific snail-parasite relationships requires a deeper understanding of the past events that have affected the population diversity and distribution of Bulinus species. (biomedcentral.com)
  • Sur la présence en France et monsiosis caused by this novel species in Corsica between 1966 and the pres- en Corse du Bullinus contortus (Michaud), were identified in HIV-uninfected per- ent time. (cdc.gov)
  • Bulinus truncatus snails were collected from the Tono irrigation canals in the Kassena-Nankana district of northern Ghana (10°45′ N and 1° W) and used to establish breeding colonies in the laboratory. (biomedcentral.com)
  • Lactic acid production was increased in schistosome-infected snails by 52 and 73% of that of uninfected B. alexandrina and Bulinus truncatus, respectively. (eurekamag.com)
  • Hybrid origin of polyploidy in freshwater snails of the genus Bulinus (Mollusca: Planorbidae). (foliamalacologica.com)
  • At experimental schools, crayfish were introduced into nearby aquatic habitats harboring Bulinus africanus snails and serving as S. haematobium transmission sites. (nih.gov)
  • In order to evaluate the snail host contribution on the variability of mollusk/schistosome compatibility, the genetic structure of seven Cameroonian populations of the schistosome vector, Bulinus truncatus, was studied using four variable microsatellite loci. (archives-ouvertes.fr)
  • The long period of quiescence between 1900 and 2002 is thought to be as a result of several factors, but primarily because of the impact of the area's cold winters and drought-prone climate on the survival and reproduction of both the snail intermediate host Bulinus africanus and the intramolluscan stages of the parasite. (scielo.org.za)
  • The aim of this study was to establish the effects of the Bt toxin on fecundity, development and growth of Bulinus tropicus, a freshwater snail. (nwu.ac.za)
  • Bulinus contortus snails. (cdc.gov)
  • However, of the 55 bod- tanée de Bulinus contortus en Corse C.-R. (cdc.gov)
  • It can be transmitted to humans through simple skin contact with water in bodies of water or waterways (streams, rivers, lakes or ponds) in which freshwater gastropod snails of the genus Bulinus live. (anses.fr)
  • It can be transmitted to humans through simple skin contact with fresh water in which freshwater gastropod snails of the genus Bulinus live and, when infested, disperse the flatworm's larvae into the water. (anses.fr)
  • La prevalence de la schistosomiase urinaire est faible et l'enquete malacologique montre que Bulinus truncatus assureraient la transmission de la schistosomiase urinaire. (ajol.info)
  • To do so, the Agency has conducted an expert assessment of the ecology of the Bulinus snail, and its expert assessment work has led it to recommend acquiring further knowledge on these molluscs in order to provide a comprehensive review of their presence in bodies of water and waterways conducive to their development. (anses.fr)
  • The Agency's expert assessment recommends imperatively drawing up a map in order to describe the population dynamics of the Bulinus snail in waterways and bodies of water throughout France. (anses.fr)
  • Ann Para- monsiosis from Johannesburg, South somiasis proves that a human- Bulinus sitol Hum Comp. (cdc.gov)
  • un caracol, Planorbis guadeloupensis (Alarcon, 1999) y en 1922, a pesar que se desconoce la distribucion de este vector se esbozan las primeras medidas de control de esquistosomiosis, pero es desde 1943 que realmente comienza el programa con una estructura formal en el anterior Ministerio de Sanidad y Asistencia Social, hoy Ministerio del Poder Popular para la Salud (MPPS, 2009). (thefreedictionary.com)
  • The results reported in this study are very important since a detailed understanding of the population genetic structure of Bulinus is essential to understand the epidemiology of many schistosome parasites. (biomedcentral.com)
  • A brief account is given of the geographical distribution and habitats of Bulinus reticulatus as reflected by the 278 samples currently on record in the database of the National Freshwater Snail Collection, Potchefstroom University. (journals.co.za)
  • The cox1 region showed much more variation than the ribosomal markers within Bulinus sequences. (biomedcentral.com)
  • At 2 sites, unidentifiable cercaria larvae were revealed through dissection (5 of 70 Bulinus snails in the Rizzanese, 26 of 50 in the Baraci). (cdc.gov)
  • Results: Out of 1,257 screened Bulinus truncatus, 187 (14.9%) shed four types of cercariae. (elsevier.com)
  • Infection naturelle en endemic to sub-Saharan Africa. (cdc.gov)
  • Observations on the compatibility between Bulinus spp. (ugent.be)
  • ii) determining diversity, frequency and distribution patterns of Bulinus spp. (biomedcentral.com)
  • On estime que la température mondiale augmentera en moyenne de 1,0 à 3,5 °C d ici 2100, ce qui accroîtra la probabilité de nombreuses maladies à transmission vectorielle. (scielosp.org)
  • Investigations of Bulinus snails were conducted solely in the southern part of the island, in the area where Brumpt had described their presence 30 years earlier. (cdc.gov)