Trematoda
Schistosoma mansoni
Snails
Echinostomatidae
Schistosomiasis mansoni
Schistosoma
Biomphalaria
Schistosoma japonicum
Schistosomiasis
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.
Schistosomiasis japonica
Bulinus
Antigens, Helminth
Echinostoma
Larva
Cardiidae
Host-Parasite Interactions
Schistosoma haematobium
Heterophyidae
Oxamniquine
An anthelmintic with schistosomicidal activity against Schistosoma mansoni, but not against other Schistosoma spp. Oxamniquine causes worms to shift from the mesenteric veins to the liver where the male worms are retained; the female worms return to the mesentery, but can no longer release eggs. (From Martindale, The Extra Pharmacopoeia, 31st ed, p121)
Lymnaea
Niclosamide
Gastropoda
Life Cycle Stages
Disease Vectors
Granuloma, Foreign-Body
Paramphistomatidae
Dithioerythritol
Liver Diseases, Parasitic
Vaccines
DEET
Animal Structures
Fasciola hepatica
Host Specificity
Antigens, CD15
Anthelmintics
Schistosomiasis haematobia
Water
Granuloma
Vaccines, Attenuated
Swimming
Vaccination
Feces
Immunization
Deliberate stimulation of the host's immune response. ACTIVE IMMUNIZATION involves administration of ANTIGENS or IMMUNOLOGIC ADJUVANTS. PASSIVE IMMUNIZATION involves administration of IMMUNE SERA or LYMPHOCYTES or their extracts (e.g., transfer factor, immune RNA) or transplantation of immunocompetent cell producing tissue (thymus or bone marrow).
Cathepsin B
A lysosomal cysteine proteinase with a specificity similar to that of PAPAIN. The enzyme is present in a variety of tissues and is important in many physiological and pathological processes. In pathology, cathepsin B has been found to be involved in DEMYELINATION; EMPHYSEMA; RHEUMATOID ARTHRITIS, and NEOPLASM INVASIVENESS.
Species Specificity
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
Artemisinins
Skin
Administration, Topical
The application of drug preparations to the surfaces of the body, especially the skin (ADMINISTRATION, CUTANEOUS) or mucous membranes. This method of treatment is used to avoid systemic side effects when high doses are required at a localized area or as an alternative systemic administration route, to avoid hepatic processing for example.
Seasons
Molecular Sequence Data
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.
Polymerase Chain Reaction
In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.
Microscopy, Electron, Scanning
Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.
Disease Models, Animal
Microscopy, Electron
Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.
Rabbits
Mice, Inbred Strains
Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations, or by parent x offspring matings carried out with certain restrictions. All animals within an inbred strain trace back to a common ancestor in the twentieth generation.
Immunoglobulin G
Liver
Heat-Shock Proteins
Amino Acid Sequence
Cercarial dermatitis transmitted by exotic marine snail. (1/21)
(+info)Immune events associated with high level protection against Schistosoma japonicum infection in pigs immunized with UV-attenuated cercariae. (2/21)
(+info)A cysteine proteinase in the penetration glands of the cercariae of Cotylurus cornutus (Trematoda, Strigeidae). (3/21)
(+info)Synchronous attack is advantageous: mixed genotype infections lead to higher infection success in trematode parasites. (4/21)
(+info)Multiple vaccinations with UV- attenuated cercariae in pig enhance protective immunity against Schistosoma japonicum infection as compared to single vaccination. (5/21)
(+info)Haplometra cylindracea (Zeder, 1800) (Trematoda:Plagiorchiidae): variation in the dates of cercarial shedding for overwintering Galba truncatula. (6/21)
Natural infections of Galba truncatula with Haplometra cylindracea were followed from 2001 to 2009 to determine if their characteristics were similar when snails came from water collections frequented by Bufo bufo or by frogs and newts for their egg-laying. Snail samples were collected from both types of sites to count shed cercariae for three days and also free cercariae when snails were dissected. In sites only frequented by B. bufo, cercarial shedding occurred earlier than in those colonized by frogs and newts (March instead of April-May). In contrast, the number of cercariae shed during three successive days was significantly higher in May. This variation in the dates of cercarial shedding might be due, either to a synchronism between cercaria-releasing snails and the presence of the definitive host (tadpoles) in water collections, or to an earlier infection of overwintering snails in autumn by H. cylindracea miracidia in the case of toad-frequented sites. (+info)Molecular expression and enzymatic characterization of thioredoxin from the carcinogenic human liver fluke Opisthorchis viverrini. (7/21)
(+info)Secretory glands in cercaria of the neuropathogenic schistosome Trichobilharzia regenti - ultrastructural characterization, 3-D modelling, volume and pH estimations. (8/21)
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Cercaria
A cercaria (plural cercariae) is the larval form of the trematode class of parasites. It develops within the germinal cells of ... A cercaria has a tapering head with large penetration glands. It may or may not have a long swimming "tail", depending on the ... The motile cercaria finds and settles in a host where it will become either an adult, or a mesocercaria, or a metacercaria, ... Rotifers (Rotaria rotatoria) produce a chemical, Schistosome Paralysis Factor, suppressing cercaria swimming and reducing ...
Cercaria (genus)
1990 Cercaria inhabilis Cort, 1914 Cercaria isocotylea Cort, 1914 Cercaria laevicardi Cercaria leptacantha Cort, 1914 Cercaria ... Species: Cercaria armata Tang, 1990 Cercaria brevicaeca Cort, 1914 Cercaria brookoveri Faust, 1918 Cercaria burti Miller, 1923 ... 1926 Cercaria douglasi Cort, 1917 Cercaria douthitti Cort, 1914 Cercaria elegans Tang, 1992 Cercaria elongata Brackett, 1940 ... 1953 Cercaria minus Tang, 1990 Cercaria mortoni Tang, 1990 Cercaria multicellulata Miller, 1923 Cercaria myae Uzmann, 1952 ...
Metagonimoides oregonensis
Cercariae are larval trematode worms that form from rediae. When the snail was infected in the wild there was no sign of ... "Cercaria". Merriam-Webster. Merriam-Webster. Meade & Pratt 1966. Lang Ford, Bennie R., Bruce Zelner; Gleason, Narry Neil; Ford ... Studies have shown that it is possible for the cercariae to infect multiple different frogs, including red-legged frogs (Rana ... Rediae are larvae which are produced within the sporocyst of trematodes that creates more rediae or can become cercariae. ...
K. C. Pandey
Pandey, K. C. (1971). "On a Rare Cercaria, Cercaria soparkari n.sp., (Transversotrematidae) from Lucknow, India". Journal of ...
Acanthoparyphium tyosenense
Three new echinostome cercaria in Tokyo Bay, with a list of Japanese echinostome cercariae". Japanese Journal of Medical ... Ito, Jiro (1957). "Studies on the brackish water cercaria in Japan. III. ...
ATP:guanido phosphotransferase family
Smc74, a cercaria-specific enzyme from Schistosoma mansoni. Creatine kinase (EC 2.7.3.2) (CK), which catalyses the reversible ...
Schistosoma haematobium
Each cercaria has a biforked tail with which it swims to find a human host. Again the cercariae are short lived and can survive ... After a month, the sporocysts rupture and cercariae are liberated. Free cercariae penetrate the liver and move out of the snail ... Each daughter sporocyst forms new larvae called cercariae. One mother sporocyst produces half a million cercariae. ... The cercaria has a characteristic bifurcated tail, classically called furcae (Latin for fork); hence, the name (derived from a ...
Schistosoma mansoni
Stimulated by light, hundreds of cercariae penetrate out of the snail into water. The cercaria emerge from the snail during ... Cercariae are attracted to the presence of fatty acids on the skin of their definitive host, and the parasite responds to ... The cercaria has a characteristic bifurcated tail, classically called furcae (Latin for fork); hence, the name (derived from a ... Young children living in these areas are at greatest risk because of their tendency to swim and bathe in cercaria-infected ...
Paragonimus westermani
Cercaria (not shown): Cercariae are often indistinguishable between species. There is a large posterior sucker, and the ... which subsequently produce many daughter rediae which shed crawling cercariae into freshwater. The crawling cercariae penetrate ... Cercariae next invade the second intermediate host such as crabs or crayfish and encyst to develop into metacercariae within 2 ... Miracidia penetrate its soft tissues and go through several developmental stages inside the snail but mature into cercariae in ...
Opisthorchis viverrini
Each cercaria has a large head and a long tail. The cercariae escape from the snail and enter the water body again as free- ... The cercaria then locates a cyprinoid fish, encysts in the fins, skin, and musculature of the fish, and becomes a metacercaria ... Adam R, Arnold H, Hinz E, Storch V (May 1995). "Morphology and ultrastructure of the redia and pre-emergent cercaria of ... Rachprakhon, Phuphitchan; Purivirojkul, Watchariya (2021). "Very low prevalence of Opisthorchis viverrini s.l. cercariae in ...
Transversotrema
Soparkar, M. B. (1924). A new cercaria from northern India Cercaria patialensis nov. spec. Indian Journal of Medical Research, ...
Fasciola
Cercariae of F. hepatica in a snail and flukes infecting sheep were first observed in 1379 by Jehan De Brie. The life cycle and ... The cercariae then develop into metacercarial cysts. When these cysts are ingested along with the aquatic plants by a mammalian ... The miracidia then infect gastropod intermediate hosts and develop into cercariae, which erupt from the body of the snail host ... cercaria, metacercaria, and adult fluke. The eggs are passed in the feces of mammalian hosts and, if they enter freshwater, the ...
Fasciolidae
the cercariae are of a gymnocephalic shape. According to Olson et al. 2003 the family has five genera: Fasciola Fasciola ...
Gastrodiscoides
The cercariae released from the snail form metacercarial cysts on water plants. The complete life cycle is not yet observed in ... Infective cercariae are produced and are released on water plants or directly infect other aquatic animals, such as fish. ... It is hypothesised that the free cercaria in water bodies accidentally find and penetrate these animals as second intermediate ... In an experimental infection of the mollusc Helicorbis coenosus, miracidum develops into cercaria after 28-153 days of ...
Swimmer's itch
The cercaria penetrates the skin and dies in the skin immediately. The cercariae cannot infect humans, but they cause an ... the cercaria. Cercariae use a tail-like appendage (often forked in genera causing swimmer's itch) to swim to the surface of the ... Some laboratory evidence indicates snails shed cercariae most intensely in the morning and on sunny days, and exposure to water ... Onshore winds are thought to cause cercariae to accumulate along shorelines. Studies of infested lakes and outbreaks in Europe ...
Trematoda
Either the rediae or the sporocyst develops into the cercariae through polyembryony in the snail. The cercariae are adapted for ... The rediae and cercariae develop from the larvae which are then released and encyst as metacercariae on aquatic plants. Humans ... As a definitive host, humans are infected when the cercariae (the larval forms of trematodes) penetrate the skin. Any contact ... They complete their gestation and hatch as cercariae. They leave their snail hosts and infect fish who are their second ...
Echinostoma revolutum
Cercariae typically find a snail host through chemotaxis. The cercariae are attracted to the slime of the snail, which contains ... Each rediae then develop into a cercariae, which penetrates a second host. The second host could be another snail or a tadpole ...
Heterophyes heterophyes
The rediae produce cercariae which then exit the snail, swim toward the surface of the water, and slowly fall back down. On ... Here, the cercariae encyst in the muscle tissue. The second intermediate host include freshwater fish: Mugil cephalus, Tilapia ...
Parafossarulus striatulus
in Chinese) Chen Y., Lin J. & Fang Y. (1990). "[Ecological studies on the cercariae of Echinochasmus japonicus]". Zhongguo Ji ...
Marstonia comalensis
doi:10.1046/j.1463-6409.2003.00115.x. Cable R. M. & Isserhoff H. (1969). "A protandrous haploporid cercaria, probably the larva ...
Philophthalmus gralli
... which migrate to digestive glands to continue its development and produce megalurous cercariae. Cercariae are released from the ... The cercaria has two suckers: a ventral sucker and rounded subterminal sucker. Intestinal ceca bifurcate posterior to pharynx. ...
Paragonimus skrjabini
Rediae produce cercariae (the larval form of the parasite). The cercariae migrate from the snail to a crab, entering either ...
Bucephalus elegans
A Study of the Gasterostome Cercariae of the Huron River. Arthur E. Woodhead, Transactions of the American Microscopical ... Response to Light in the Cercariae of Bucephalus elegans. Gerrit Bevelander, Physiological and Biochemical Zoology, Volume 6, ...
Neorickettsia risticii
Then, the cercaria form of the fluke develops and emerges from the snail into the environment. The cercaria then invades the ... The cercaria develops into a metacercaria as the insect develops into an adult. The adult insect is then ingested by an ... Horses can be exposed through skin penetration by infected cercaria form of the fluke. This is commonly seen when horses are ...
October 1971
Among 28 species she discovered were Meiosquilla lebouri, Cercaria lebouri and Lepidodiscus lebouri. U.S. Navy Admiral Richard ...
Telogaster
Inside the snail, the eggs hatch and develop into cercariae. Free-swimming cercariae leave the snail and encyst in the skin or ... Free-swimming cercariae leave the snail and penetrate the skin of the fish Galaxias anomalus, which act as secondary ...
Homalometron pallidum
These undergo asexual reproduction and multiply before becoming motile cercariae. The cercariae are few in number and large in ... In their new host, the cercariae become metacercariae by encysting in the tissues. In this inactive state, they wait to be ...
Bucephalus (trematode)
A Study of the Gasterostome Cercariae of the Huron River. Arthur E. Woodhead, Transactions of the American Microscopical ... of its cercaria. By what Manter calls a "curious circumstance", horns are also suggested by the long tentacles of adult worms. ... initially described from a cercaria larva. Siebold (1848) believed that the adult bucephalid he named Gasterostomum fimbriatum ...
Ribeiroia
Encysted cercariae become metacercariae, a dormant parasite stage with a thin outer membrane. Metacercariae resemble cercariae ... Cercariae appear to prefer to infect in and around the developing limb buds of larval amphibians, which can alter or inhibit ... 2004). The trematode Cercaria lileta is also closely related to Ribeiroia, and molecular sequence data indicates that it may be ... Experimental exposure to Ribeiroia ondatrae cercariae has been shown to cause limb malformations in various frog, toad and ...
Digenea
... the cercaria (pl. cercariae). Free-swimming cercariae leave the snail host and move through the aquatic or marine environment, ... a fish consumes a cercaria) or actively (the cercaria penetrates the fish). The life cycles of some digeneans include only two ... Cercariae are infective to the second host in the life cycle, and infection may occur passively (e.g., ... In these groups, sexual maturity occurs after the cercaria penetrates the second host, which is in this case also the ...
The marine, dermatitis-producing cercaria of Austrobilharzia variglandis in California (Trematoda: Schistosomatidae) - PubMed
... dermatitis-producing cercaria of Austrobilharzia variglandis in California (Trematoda: Schistosomatidae) ... The marine, dermatitis-producing cercaria of Austrobilharzia variglandis in California (Trematoda: Schistosomatidae) G GRODHAUS ... The marine, dermatitis-producing cercaria of Austrobilharzia variglandis in California (Trematoda: Schistosomatidae) G GRODHAUS ... observations on the biology of the cercaria. Appleton CC. Appleton CC. Int J Parasitol. 1983 Jun;13(3):239-47. doi: 10.1016/ ...
Lectins of Trichobilharzia szidati cercariae | Parasite
Lectins of Trichobilharzia szidati cercariae. Lectines de cercaires de Trichobilharzia szidati P. Horák1*, L. Grubhoffer2, L. ... Cercariae of Trichobilharzia szidati were examined for the presence of endogenous lectins. The haemagglutination caused by the ... Penetration of Trichobilharzia cercariae into mammals: dangerous or negligible event? Parasite, 2008, 15, 299-303. ... Key words: Trichobilharzia szidati / schistosomes / cercaria / lectin / agglutinin. Mots clés : Trichobilharzia szidati / ...
Cercaria
- CHIC LUSSO
As a domestically crafted sofa, Cercaria is big on both comfort and style, all upholstered in leather. A really comfortable ... The Cercaria sofa has this special channel-stitched seat and back cushions. ... The Cercaria sofa has this special channel-stitched seat and back cushions. As a domestically crafted sofa, Cercaria is big on ...
"Rattenkoenig" cercaria | Fish...
Field trial of 1% niclosamide as a topical antipenetrant to Schistosoma mansoni cercariae - Fingerprint - HSC
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Effect of some environmental factors on the miracidium and cercaria of Heterobilharzia americana Price, 1929 | Tulane...
The cercariae were also found to behave in the same way, so to bring them to the proximity of the mammalian host. To study the ... The cercariae were also found to behave in the same way, so to bring them to the proximity of the mammalian host. To study the ... The effect of light and gravity on the miracidia and cercariae were investigated using tubes in horizontal and vertical ... The effect of light and gravity on the miracidia and cercariae were investigated using tubes in horizontal and vertical ...
050-44]Mucosubstances in Plagiorchoid and Monostomate Cercariae (Trematoda: Digenea) | Illinois State Academy of Science -...
Cercariae shed by Bulinus tropicus (Krauss, 1848) in the Free State, South Africa<...
... an amphistome cercaria, three xiphidio cercariae and a cystophorous cercaria. The presumptive life cycles of these parasitic ... an amphistome cercaria, three xiphidio cercariae and a cystophorous cercaria. The presumptive life cycles of these parasitic ... an amphistome cercaria, three xiphidio cercariae and a cystophorous cercaria. The presumptive life cycles of these parasitic ... an amphistome cercaria, three xiphidio cercariae and a cystophorous cercaria. The presumptive life cycles of these parasitic ...
The migration of Cotylurus erraticus cercariae (Trematoda: Strigeidae) in rainbow trout (Salmo gairdneri) and their effects on...
Ancient Italian fossils reveal risk of parasitic infections due to climate change - Watts Up With That?
Pesticide Mixtures, Endocrine Disruption, and Amphibian Declines: Are We Underestimating the Impact? | Environmental Health...
Another Dimension: Madness
When ants eat them, they also eat the cercaria of D. dendriticum. Inside the ants, most of the cercaria encyst in the walls of ... When the slime balls are secreted onto the snails feet, so are the cercaria. As the snails make their way toward whatever it ... Here the cercaria transform into another life stage called metacercaria. Unlike the metacercaria left behind in the abdomen, ... dendriticum hatch, pass through two sporocyst stages of their lives, transform into another life stage called cercaria, and ...
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Stem cell heterogeneity drives the parasitic life cycle of Schistosoma mansoni | eLife
... allowing massive numbers of cercariae to be produced from a single miracidium. Mature cercariae emerge from the snail into ... S. mansoni cercariae were shed from infected Biomphalaria glabrata snails about 5-8 weeks post-infection by exposing snails to ... Cercariae also contain two clusters of κ-cells, in the germinal cell cluster that is proposed to be the gonadal primordia ( ... 1972) Studies on molluscan schistosomiasis: an analysis of the development of the cercaria of Schistosoma mansoni Parasitology ...
Research Materials of Freshwater Molluscs in China, China Scientific Book Services:The Best Professional China Books
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SciELO - Brazil - Non-coding RNAs in schistosomes: an unexplored world Non-coding RNAs in schistosomes: an unexplored world
In the comparison between cercariae and 7-day-old schistosomula we found 401 differentially expressed genes; 271 in cercariae ... miracidia; cercariae vs. 7-day-old schistosomula and 7-day-old schistosomula vs. adult worms. We used a dye-swap approach to ... miracidia; cercariae vs. 7-day-old schistosomula and 7-day-old schistosomula vs. adult worms) using SAM (Significance Analysis ... The list of all differentially expressed genes between cercariae and schistosomula is in Supplementary Table V (Part C). In ...
Pathology of Cystitis: Overview, Etiology, Gross Findings
DigitalNC
SchistosomeSnailSchistosomaPenetrateFreshwaterSnailsMansoniSecond intermediate hostBiomphalariaTrematodeTrichobilharziaInfectionSpeciesMiceParasitesSkinFormSimpleTrematode cercariaeTrematodaInfective cercariaeTypes of cercariaeTrematodesScanning electron mLarvaeMiracidiaMetacercariaeStagesCercarialFlukesAdultsSchistosomulaVariglandisExposureDigeneaPenetrate the human skinTailsSkinWaterSearchProduction
Schistosome5
- IMSEAR at SEARO: A simple restraining case for exposing mouse to schistosome cercariae. (who.int)
- Immediate manifestations The first clinical manifestation following infection is a maculopapular pruritic eruption, termed cercarial dermatitis, which may arise at the site of skin penetration by schistosome cercariae [7]. (lacbiosafety.org)
- A drug from rotifers that live on the snail intermediate host which paralyzes schistosome cercariae and prevents infection of mice. (asm.org)
- The TWiPsters solve the case of the Rashy Schoolteacher, and reveal a drug from rotifers that live on the snail intermediate host which paralyzes schistosome cercariae and prevents infection of mice. (asm.org)
- L. planaxis snails collected along the rocky shores tions along with their exotic host species ( 1,4 ), sometimes of southern California released schistosome cercariae that causing extinction of indigenous parasites ( 5 ). (cdc.gov)
Snail11
- Investigations on the life cycle of Cercaria globocassis (Trematoda : Azygiidae) from the snail Goniobasis livescens (Menke) from Burt Lake, Michigan. (umich.edu)
- Within the snail, the miracidia develop into sporocysts and then into a form (called cercaria) that has a forked tail and can swim in water. (merckmanuals.com)
- The cercariae are released from the snail into the water and penetrate the skin of people who enter the water. (merckmanuals.com)
- The cercariae are highly mobile and exit the snail into the water where they swim to find their new human or animal host. (biomedcentral.com)
- Once the miracidia worm their way into the snail, the parasite develops into its next life form, emerging from the snail as a tiny creature called a cercariae , that swims around in the water looking for a fish in which to infect. (outdoorcanada.ca)
- The first intermediate host is a terrestrial snail ( Cionella lubrica , in the US), from which cercariae emerge and are aggregated in a mass of sticky mucus (slimeball). (merckvetmanual.com)
- Within the snail tissues, the miracidia develop into rediae and then cercariae-long-tailed, motile forms which are infective to the second intermediate host. (mhmedical.com)
- Cercariae emerge from the snail into water, and upon contact with a suitable intermediate host (nearly always fish of the family Cyprinidae, such as carp, true minnows, and barbs) they penetrate the skin of the fish, shed their tails, and encyst in the skeletal muscle and viscera as metacercariae. (mhmedical.com)
- The stages in the snail include 2 generations of sporocysts and the production of cercariae. (medscape.com)
- Upon release from the snail, the infective cercariae swim, penetrate the skin of the human host, and migrate through several tissues and stages to their residence in the veins. (medscape.com)
- The infectious form of the parasite, known as cercariae, emerge from the snail, hence contaminating water. (who.int)
Schistosoma3
- Developing larvae of Schistosoma mansoni migrate through various tissues en route to the liver and mesenteric veins of their definitive host. (ajtmh.org)
- New field device for quantitative recovery of Schistosoma mansoni cercariae. (cdc.gov)
- The Epigenome of Schistosoma mansoni Provides Insight about How Cercariae Poise Transcription until Infection. (leibniz-fli.de)
Penetrate5
- 6. When cercariae penetrate the skin, they lose their tail and become schistosomula. (merckmanuals.com)
- They penetrate the snails foot, transform and divide into thousands of cercariae. (biomedcentral.com)
- The cercariae then penetrate the skin and transform into schistosomulae which enter the blood vessels and migrate to the lung. (biomedcentral.com)
- The cercariae penetrate the gills of brackish-water fish, Fundulus parvipinnis , and they work their way to the body process of the gill where they encyst. (aavp.org)
- Once the miracidia are released they infect the fresh water snails where they developed and multiply into free-swimming cercariae which can penetrate the skin. (lstmed.ac.uk)
Freshwater3
- A parapleurolophocercous cercaria and a furcocercous cercaria from the freshwater gastropods of the Western Ghats. (kannuruniversity.ac.in)
- The effect of temperature on cercariae production of two Rhipidocotyle trematodes parasitizing freshwater mussel, Anodonta anatina. (jyu.fi)
- Although schistosomiasis is a widespread infection in the tropics, travellers are almost exclusively infected in sub-Saharan Africa, through exposure to freshwater infested with cercariae of either S. mansoni or S. haematobium. (eurosurveillance.org)
Snails3
- Cercariae are infectious larvae of trematods, which develop in snails and, after hatching, infect other intermediate hosts or the final hosts. (uibk.ac.at)
- We trained our CNN, a feed-forward neural network, on a limited dataset of 5,500 images of snails and 5,100 images of cercariae obtained from schistosomiasis transmission sites in the Senegal River Basin, a region in western Africa that is hyper-endemic for the disease. (nsf.gov)
- Biomphalaria snails collected from Chore and Awetu Rivers shaded higher rate of cercariae compared with Kito River. (bvsalud.org)
Mansoni1
- Regional (lymph node) and systemic (spleen) blastogenic responses to cercarial, adult and egg antigens were measured in CBA/J mice at various times after exposure to normal or irradiated S. mansoni cercariae. (ajtmh.org)
Second intermediate host1
- The slimeballs of cercariae are ingested by the second intermediate host, which is an ant ( Formica fusca , in the US), and metacercariae form in the ant's abdominal cavity. (merckvetmanual.com)
Biomphalaria1
- Cercaria mohemboense were shed by Pila occidentalis (Mousson, 1887) and Cercaria dubaensis and Cercaria indistinctus were shed by Biomphalaria pfeifferi (Krauss, 1848), respectively. (smu.ac.za)
Trematode1
- Encysted cercaria which house the intermediate stages of trematode parasites in tissues of an intermediate host. (bvsalud.org)
Trichobilharzia1
- Trichobilharzia species) can cause cercaria dermatitis, also called swimmer´s itch. (uibk.ac.at)
Infection1
- Infection is acquired when people come into contact with fresh water infested with the larval forms (cercariae) of parasitic blood flukes, known as Schistosomes. (who.int)
Species1
- San Francisco Bay has been the site of numerous well- the cercariae as Austrobilharzia variglandis (Miller and documented introductions of exotic species ( 10-12 ). (cdc.gov)
Mice1
- The reactivity of mice exposed to irradiated cercariae followed a pattern suggestive of a sustained antigenic stimulus only in the nodes draining the tail and lungs. (ajtmh.org)
Parasites1
- Morphological descriptions of these fork-tailed cercariae are given, with suggestions on the possible life cycles of these parasites. (smu.ac.za)
Skin1
- So, over time, more and more cercariae have worked their way under the fishes' skin. (outdoorcanada.ca)
Form1
- both proteinases are expressed in male and female adults but at different levels, and the pro-form of SmCLl is also expressed in cercariae. (dcu.ie)
Simple1
- The cercariae have simple tails without fins and two large eye spots. (aavp.org)
Trematode cercariae3
- There were no differences in survival of trematode cercariae between treatments. (springer.com)
- For the main experiment, we exposed tadpoles to clean water versus high concentrations of clothianidin or thiamethoxam for 2 weeks and added trematode cercariae to all tanks after 1 week. (springer.com)
- trematode cercariae. (springer.com)
Trematoda3
- Studies on Austrobilharzia terrigalensis (Trematoda: Schistosomatidae) in the Swan Estuary, Western Australia: observations on the biology of the cercaria. (nih.gov)
- This entry was posted in 1957 , Transactions and tagged Kruidenier , Mehra , Mucosubstances in Plagiorchoid and Monostomate Cercariae (Trematoda: Digenea) . (ilacadofsci.com)
- Experimental Infection of Biomphalaria Glabrata, Helisoma Trivolvis, and Physa Heterostropha (Gastropoda) with Cercariae of Echinosotma Revolutum (Trematoda) by: Anderson, Jeffrey. (lafayette.edu)
Infective cercariae3
- Freshwater infection, water mollusks intermediate hosts → infective cercariae enter the skin. (hopkinsguides.com)
- Humans acquire schistosomiasis through exposure or ingestion to infective cercariae (see below under life cycle), not by ingesting adult flukes or their eggs. (parasitipedia.net)
- These infective cercariae actively penetrate through the skin of the host, or are ingested with contaminated water when grazing in marshes, swamps, and otherwise humid vegetation. (parasitipedia.net)
Types of cercariae2
- Light and scanning electron microscopy was used to describe the morphology of five types of cercariae, an amphistome cercaria, three xiphidio cercariae and a cystophorous cercaria. (smu.ac.za)
- Four types of cercariae recorded were gymnocephalus cercaria, furcocercous cercaria, echinostome cercaria and xiphidocercaria. (skuastkashmir.ac.in)
Trematodes4
- Direct consumption on free-living cercariae stages of trematodes by non-host organisms interferes with trematode transmission and leads to reduced infections in the next suitable hosts. (datadryad.org)
- We investigated how temperature influences the consumer functional response of the amphipod Gammarus lacustris towards the cercariae of three freshwater trematodes ( Diplostomum , Apatemon and Trichobilharzia ). (datadryad.org)
- We first exposed infectious stages of frog trematodes (cercariae of Echinostoma spp. (springer.com)
- Both this species and C. californica frequently are infested with abundant cercariae larvae from flukes (Trematodes), and serve as alternate hosts to the flukes which infect seabirds. (ubc.ca)
Scanning electron m1
- The cercaria morphology of Echinochasmus japonicus was investigated using light and scanning electron microscopy. (deepdyve.com)
Larvae1
- Cercariae are one type of fluke larvae , which are characterized by a tail for movement. (emf-portal.org)
Miracidia1
- The effect of light and gravity on the miracidia and cercariae were investigated using tubes in horizontal and vertical positions with different illumination levels. (tulane.edu)
Metacercariae1
- Sequences of CO1 and ITS from grownup Apharyngostrigea simplex (Johnston, 1904) from Egretta thula in Argentina matched revealed information from cercariae from Biomphalaria straminea from Brazil and metacercariae from Cnesterodon decemmaculatus in Argentina, in step with earlier morphological and life-cycle research reporting this parasite-originally described in Australia-in South America. (molbiol.net)
Stages2
- In collaboration with Prof. Alan Wilson (University of York), expressed sequence tags from the following life cycle stages have been produced: day 21 liver worms (mouse host), day 28 liver worms (mouse), day 28 liver worms (rat), day 7 lung stage, intramolluscan germ ball, cercariae, day 3 schistosomule. (sanger.ac.uk)
- The cercariae penetrate the skin of the fish and the larval stages are found in the tissues of the fish. (aavp.org)
Cercarial2
- In agreement with affinity fluorescence, mouse antibodies to the cercarial haemagglutinins recognized the postacetabular penetration glands and the surface of cercariae. (parasite-journal.org)
- The prey-specific consumption patterns of amphipods were related to cercarial distribution in the water column rather than to the size of cercariae or temperature influence. (datadryad.org)
Flukes1
- Infection is acquired when people come into contact with fresh water infested with the larval forms (cercariae) of parasitic blood flukes, known as Schistosomes. (who.int)
Adults2
- cloves kill eggs, wormwood kills cercaria and the tincture kills adults. (drclark.de)
- When compared to adults, young children typically spend more time in the water, have more sensitive skin, and have a greater tendency to play in shallower water where cercariae most often concentrate. (swimmersitchsolutions.com)
Schistosomula1
- During penetration, cercariae develop into schistosomula, which are transported via the lymph and blood to their predilection sites. (merckvetmanual.com)
Variglandis1
- The Bureau of Vector Control of the California Department of Health Services identified the cercariae as Austrobilharzia variglandis (Miller and Northrup 1926) collected from the eastern Atlantic mudsnail Ilyanassa obsoleta (Say 1822) (Hypsogastropoda: Nassariidae) syn. (cdc.gov)
Exposure1
- Usually within 30 minutes of exposure to a cercaria, a small red spot appears at the site where the cercaria penetrated into the skin. (swimmersitchsolutions.com)
Digenea1
- Sensillae of cercariae of Haplorchis taichui (Digenea, Heterophyidae). (parasite-journal.org)
Penetrate the human skin1
- Swimmer's itch occurs when these cercariae encounter a human (4) , and accidentally penetrate the human skin instead of their natural hosts such as waterfowl and aquatic mammals. (alms.ca)
Tails1
- The cercariae then lose their tails and migrate to the intestinal or urogenital area. (intechopen.com)
Skin1
- No. Each papule represents the location where one cercaria has entered the skin. (swimmersitchsolutions.com)
Water2
- The transmission of the disease is linked to contact with infected water bodies such as rivers, streams, pools and lakes containing cercaria in endemic communities [ 4 ]. (biomedcentral.com)
- Because cercariae cannot live out of the water, the papules are limited to areas of the body that get exposed to lake water. (swimmersitchsolutions.com)
Search1
- Free-swimming cercariae actively search a final host. (parasitipedia.net)
Production1
- A redia's potential production of cercariae (black shapes) is indicated by the shading, with darker greenish shades representing low reproductive potential but high defensive ability, and vice versa . (biomedcentral.com)