Parasites trematode infections. Medical search. Frequent questions

Trematodes, also called flukes, cause various clinical infections in humans. (medscape.com)
All the flukes that cause infections in humans belong to the group of digenetic trematodes. (medscape.com)
Depending on the habitat in the infected host, flukes can be classified as blood flukes, liver flukes, lung flukes, or intestinal flukes (see Classification of trematodes according to their habitat). (medscape.com)
The flukes that cause most human infections are Schistosoma species (blood fluke), Paragonimus westermani (lung fluke), and Clonorchis sinensis (liver fluke). (medscape.com)
roundworms (nematodes), flatworms or flukes (trematodes), and tapeworms (cestodes). (fsai.ie)
The most common flatworms or flukes involved in human infection are liver fluke worms belonging to the family Opisthorchiidae and some species of intestinal fluke worms belonging to the Heterophyidae and Echinostomatidae families. (fsai.ie)
Paragonimiasis is a vector-borne parasitic infection caused by trematodes of the genus Paragonimus (commonly known as lung flukes). (logicalimages.com)
On migration of flukes into the lungs, patients can experience fevers, cough productive of brownish sputum, and occasionally hemoptysis as early signs of chronic pulmonary infection. (logicalimages.com)
Then they moved the tadpoles into water with trematodes, tiny parasites often called flukes, which infect each tadpole species in the wild and disrupt their growth and development. (sciencedaily.com)
Lungworms should not be confused with lung flukes, such as those of the genus Paragonimus , which are trematodes (phylum Platyhelminthes). (britannica.com)
Certain Paragonimus species of flukes cause infections of the lungs. (msdmanuals.com)
People get lung fluke infections when they swallow cysts containing immature flukes (larvae) in raw, undercooked, or pickled freshwater crabs or crayfish. (msdmanuals.com)
Differences in the compatibility of infection between the liver flukes Fascioloides magna and Fasciola hepatica in a Colombian population of the snail Galba sp. (cambridge.org)
Typical pentastomid lesions seen on fish grossly resemble infections by digenean trematodes or flukes (see UF/IFAS Fact Sheet FA-28, Monogenean Trematodes). (ufl.edu)
Paragonimiasis is a zoonoses caused by infection with lung flukes (trematodes) of various species. (uab.edu)
Jaundice may occur from either the flukes plugging up the bile ducts or from stones or cancer (cholangiocarcinoma) which results after a prolonged chronic infection. (acsh.org)
A species of trematode blood flukes of the family Schistosomatidae. (lookformedical.com)
Infection with flukes (trematodes) of the genus SCHISTOSOMA. (lookformedical.com)
A genus of trematode flukes belonging to the family Schistosomatidae. (lookformedical.com)
Methylene Blue is not indicated for the treatment of Oodinium, bacterial infections, flukes (monogenetic trematodes) or for moderately-severe to severe fungal infections. (shopdynamictank.com)
Flatworms (platyhelminths) - these include the trematodes (flukes) and cestodes (tapeworms). (cdc.gov)
Helminths include nematodes (roundworms), cestodes (tapeworms), and trematodes (flukes). (medscape.com)
Background: Schistosomiasis, previously thought to be a rural problem, is a common parasitic disease caused by flukes (trematodes) of the genus Schistosoma. (bvsalud.org)
Schistosomiasis is an acute and chronic parasitic disease caused by blood flukes (trematode worms) of the genus Schistosoma. (who.int)

The anthelmintics are subdivided according to the main type of worms (i.e. trematodes, nematodes and cestodes) causing the infections. (whocc.no)
infected, resulting in damage to organism, which highlighted the Fish-borne zoonotic parasitic diseases include cestodes, zoonotic importance of this genus that belongs to Anisakidae trematodes and nematodes that infect humans by means of family (Vidal-Martinez et al. (bvsalud.org)

Anisakidae (nematodes) infection by Eustrongylides sp. (bvsalud.org)

The study of the zoonotic parasites of the genus Anisakis and human anisakiasis is an increasingly hot topic in evolutionary biology and epidemiological studies carried out on natural and accidental (human) hosts, given the risk of this parasite to human health. (researchgate.net)
Human infections caused by fish tapeworm are most commonly caused by the genus Diphylloborothrium . (fsai.ie)
As shown previously (Lumsden and Armitage, 1999), digenetic, heterophyid trematode parasitic worms of the genus Ascocotyle infect certain amnicolid snails as first intermediate hosts (such as Littoradinops ). (creationresearch.org)
Both Ityogonimus species are stenoxenous helminths of insectivores of the genus Talpa and they have often been found parasitizing the Iberian mole and also the European mole T. europaea , but a mixed infection had not been previously reported. (degruyter.com)

The life cycle of trematodes is completed in 2 different classes of hosts: definitive (ie, humans, domestic animals, wild animals) and intermediate (ie, freshwater snails). (medscape.com)
Indeed, while many studies relate anthropogenic activity to changes in the parasitism of snails and fishes, little is known of the impact on the parasites of amphibians, particularly from agriculture. (concordia.ca)
caution be exercised when Trichlorfon is used for the removal of snails (or if snails are present during a parasite treatment). (americanaquariumproducts.com)
the parasite is carried by slugs and snails. (britannica.com)
Samples of trematode parasites and snails were confirmed on species level by molecular genetic methods. (biomedcentral.com)
We aimed to (1) describe the seasonal pattern of bird use of small freshwater systems, and (2) determine the relationship between trematode infections in freshwater snails and bird abundance and diversity. (confex.com)
To determine the relationship between trematode infections in snails and bird abundance and diversity, we subset the 10 month daily time series to match both the temporal resolution of trematode sampling and three additional sites monitored with trail cameras from June - August, 2010. (confex.com)
We suggest that this pattern may be related to sites with more birds contributing more infectious material, but for this particular set of wetlands, larger sites may have had reduced size and quality of littoral zones, which may reduce transmission of trematodes to freshwater snails. (confex.com)
Two independent experiments have shown that freshwater snails ( Potamopyrgus antipodarum ) collected from the shallow-water margins of a lake are more susceptible to infection by a trematode worm ( Microphallus sp. (evolutionary-ecology.com)
1 m), mid-water (1-3 m), and deep-water (4-6 m) habitats to parasites dissected from snails sampled from the shallow and deep habitats. (evolutionary-ecology.com)
We also exposed random samples of this same set of snails to parasites collected from two remote lakes, which have no co-evolutionary history with the Lake Alexandrina snails. (evolutionary-ecology.com)
Snails collected from the shallow habitat were more susceptible to infection regardless of the source of infection, which is inconsistent with the co-evolutionary hotspot hypothesis. (evolutionary-ecology.com)
In addition, parasites from Lake Alexandrina were more infective to snails collected from Lake Alexandrina than from the two allopatric lake populations, and the shallow-water source of parasites was more infective than the deep-water source of parasites. (evolutionary-ecology.com)
The life cycle of the trematodes can be completed in two different classes of hosts: definitive (humans, domestic, and wild animals) and intermediate (i.e. freshwater fish or snails). (acsh.org)
People become infected when larval forms of the parasite - released by freshwater snails - penetrate the skin during contact with infested water. (who.int)

Trematode infections such as schistosomiasis have emerged as important tropical infections. (medscape.com)
Schistosomiasis is an infection caused by a tiny parasite called a fluke. (msdmanuals.com)
Schistosomiasis is caused by a parasite called a fluke, which is a type of roundworm. (msdmanuals.com)
Undetected, and therewith untreated, urinary or intestinal schistosomiasis leads to chronic infections and serious morbidities including a wide range of different pathologies, e.g. anaemia, stunted growth, impaired cognition and organ damages, that negatively affect economic activities and therewith maintain poverty [ 4 , 5 ]. (biomedcentral.com)
This parasite causes schistosomiasis mansoni and intestinal bilharziasis. (lookformedical.com)
BugBitten The timing and the tools for tallying up trematodes: diagnosing and quantifying the burden of intestinal schistosomiasis. (biomedcentral.com)
The timing and the tools for tallying up trematodes: diagnosing and quantifying the burden of intestinal schistosomiasis. (biomedcentral.com)
A recent research article published in Parasites & Vectors by Joaquin Prada and colleagues encompasses some of these issues by comparing two widely used diagnostic tests for intestinal schistosomiasis (caused by Schistosoma mansoni ) in Uganda. (biomedcentral.com)
More than 207 million people, 85% of whom live in Africa, are infected with schistosomiasis, and an estimated 700 million people are at risk of infection in 76 countries where the disease is considered endemic because agricultural work, domestic chores, and recreational activities expose them to infested water. (bvsalud.org)
The infection manifests itself as a variety of different pathologies, depending on the location of the parasite and its ova in the body.Like other developing countries, schistosomiasis is endemic in certain regions of South Africa. (bvsalud.org)
An analysis conducted in selected sentinel districts showed that infection levels among 2000 individuals sampled have fallen by more than half since the beginning of a schistosomiasis control project launched in 2010, from 20% at baseline to 8%, with less than 4% harbouring severe infections. (who.int)
Transmission occurs when people suffering from schistosomiasis contaminate freshwater sources with their excreta containing parasite eggs which hatch in water. (who.int)
Urogenital schistosomiasis is also considered to be a risk factor for HIV infection, especially in women. (who.int)
As the price of praziquantel has recently decreased and drug companies are increasing the quantity of drug donations, the bulk of costs incurred by schistosomiasis control program remain diagnosis and mapping of areas to determine prevalence of infection [6] . (cdc.gov)

In the trematode group, Fasciola sp. (journaltocs.ac.uk)
origin, Colombia) with allopatric isolates of Fasciola hepatica from France or Fascioloides magna from the Czech Republic were carried out during five successive snail generations to determine if this lymnaeid might sustain complete larval development of either parasite. (cambridge.org)
However, nomadic Sahelian pastoralists health concerns regarding their livestock and anecdotal reports about trematode infections of Fasciola spp. (biomedcentral.com)
The liver fluke Fasciola gigantica secretes excretory-secretory proteins during infection to mediate its interaction with the host. (biomedcentral.com)
Metabolic profiling investigations in rodents experimentally infected with Fasciola hepatica and Echinostoma caproni yielded parasite-specific candidate biomarkers, which might give rise to novel diagnostic targets. (qxmd.com)

Can Food Safety Practices and Knowledge of Raw Fish Promote Perception of Infection Risk and Safe Consumption Behavior Intentions Related to the Zoonotic Parasite Anisakis? (researchgate.net)
In addition, infection with larval stages of Taeniids remains an important zoonotic problem. (hindawi.com)
Zoonotic infections are defined as infections that are transmitted from nonhuman vertebrates to humans. (scienceopen.com)
The approach to the patient with a potential zoonotic infection involves the generation of a differential diagnosis that includes those infectious agents that are potentially transmissible from the specific animal(s) to which the patient was exposed. (scienceopen.com)
The lack of an effective veterinary or human public health infrastructure in a given country may result in a lack of knowledge of those zoonotic infections transmitted from even commonly encountered animals. (scienceopen.com)
1 As many zoonotic agents are uncommon in humans and, for a number, have been established as causes of laboratory-acquired infections, good communication with the clinical microbiology laboratory is essential. (scienceopen.com)
within the Region it has become more common in the southern Sudan where anthro- ponotic and zoonotic sub-species infections overlap. (who.int)
Zoonotic parasites can infect fish and be a serious threat to human health. (bvsalud.org)

In spite of this, little is known about most of the parasites that are known to infect sleepy lizards. (researchgate.net)
Agricultural (and urban) area was negatively related to species richness, and associated with the near absence of adult parasites and species that infect birds or mammals. (concordia.ca)
The pentastomes are a group of worm-like parasites that infect many different species of fish. (ufl.edu)

This makes Schistosoma infection the second most prevalent tropical infectious disease in areas such as sub-Saharan Africa after malaria. (medscape.com)
The aim was to test whether trematode parasites such as Schistosoma spp. (biomedcentral.com)

Most infections (about 85%) occur in China. (wikipedia.org)
Trematode infections occur worldwide. (medscape.com)
These infections occur most often in Asia. (msdmanuals.com)
Affected fish may have grub-like lesions within the skin and muscle, however, infections can occur within internal organs of fish with no external signs present. (ufl.edu)
Infections typically occur after ingestion of raw or undercooked fish. (acsh.org)

We suggest that agriculture and urbanization may hinder parasite transmission to frogs by limiting access of other vertebrate hosts of their parasites to wetlands. (concordia.ca)
Fish get infected with parasites when they feed on intermediate hosts. (fsai.ie)
The hermaphroditic, adult trematode worms mature in the intestines of definitive hosts, most often piscivorous birds, but also certain mammals such as the raccoon. (creationresearch.org)
Determining the factors that influence disease risk and spread has been a topic of great interest, particularly in the wake of rapidly changing environments and their dramatic effects on parasites and their hosts. (adriennebmora.com)
3. We used stable isotopes to investigate each host-trematode trophic relationship and shed light on the mechanisms utilised by the parasite to reroute its hosts' biomass. (datadryad.org)
Examples of parasites that manipulate the behavior of their hosts are not hard to come by, but scientists have only recently begun to understand how they induce such dramatic changes. (the-scientist.com)
Although researchers have observed countless examples of parasites hijacking the autonomy of their hosts, only now are they beginning to understand how the parasites tinker with numerous systems within the host, ultimately changing the host's behavior in grotesque and horrific ways. (the-scientist.com)
Host abundance and diversity are integral to parasite transmission both among and between hosts. (confex.com)
However for complex-life cycle parasites, measurement of mobile host diversity and abundance often occurs on a different spatial scale than sampling for parasites in less-mobile hosts making comparisons between host groups and parasite infections difficult. (confex.com)
This is particularly important when infrequent transmission events have disproportionately large effects on parasite abundance, such as sporadic visits to small freshwater wetlands by bird hosts, which then transmit infections to other aquatic hosts. (confex.com)
Our results highlight how trail cameras can be useful in determining infrequent visitation by mobile hosts, and the relationship between these small scale visitations and complex life cycle parasites. (confex.com)
The ideal goal of a parasite is for it to move within and between hosts undetected and undisturbed, so it is hardly surprising that the development of 'gold standards' for locating, isolating and quantifying them is an on-going process and what keeps many parasitologists fascinated by these peculiar creatures. (biomedcentral.com)

This study was carried out to find the prevalence and risk factor associated with gastro-intestinal helminth parasites in 304 fecal samples of cattle of Madi Valley, Chitwan, Nepal. (journaltocs.ac.uk)
Potential risk factor like farmer's group, water source, body condition score, grazing and rearing system, purpose of animal rearing and last date of drenching showed significant association on prevalence of parasite. (journaltocs.ac.uk)
In contrast, trematode richness and prevalence decreased in wetlands with larger surface areas but were positively related to bird abundance. (confex.com)
We collected larvae of sympatric D. quadramaculatus and D. marmoratus from a stream (Beech Creek) in Towns County, Georgia, U.S.A. Although prevalence and mean visible metacercariae were different in June, no difference was seen between the species in either measure of infection in August. (bioone.org)
Currently, the Kato-Katz technique, a procedure that requires microscopic examination of stool specimens and is both time and labor intensive, is the most widely used method to identify S. mansoni infection and the primary source of data for calculating infection prevalence [4] , [5] . (cdc.gov)

In clonorchiasis and opisthorchiasis [ two conditions associated with fish trematodes ], the adult worms lodge in the smaller bile ducts of the liver, causing inflammation and fibrosis of the adjacent tissues. (fsai.ie)
Other sequelae of a chronic long-term infection can include the formation of stones within the gallbladder and bile ducts, superimposed bacterial infections and cancer of the bile ducts. (acsh.org)

Which parasites can humans catch from fish? (fsai.ie)
How can humans get infected with fish parasites? (fsai.ie)
Infection in humans is associated with the consumption of fish containing live parasites. (fsai.ie)
Humans are not the 'intended' host of the parasites as we are not an aquatic mammal. (fsai.ie)
Humans are infected on ingestion of parasites in raw or undercooked freshwater crabs or crayfish, or uncooked wild boar meat. (logicalimages.com)
The rat lungworm ( A. cantonensis ) normally occurs as a parasite in rats in Southeast Asia and the Pacific Islands , but in humans it causes rat lungworm disease, which is characterized by eosinophilic meningitis, an elevation of the white blood cells known as eosinophils in the central nervous system . (britannica.com)
for example, Escherichia coli O157:H7 infections have been most commonly transmitted to humans via the ingestion of undercooked ground beef. (scienceopen.com)
There are three main classes of parasites that can cause disease in humans: protozoa, helminths, and ectoparasites. (cdc.gov)
They are able to multiply in humans, which contributes to their survival and also permits serious infections to develop from just a single organism. (cdc.gov)
Parasites causing intestinal infections in humans include protozoa and helminths. (medscape.com)

Digenic trematodes are unsegmented, leaf-shaped worms that are flattened dorsoventrally. (medscape.com)
Piperazines aquatic uses are restricted to internal parasite control, especially intestinal worms. (americanaquariumproducts.com)

This group comprises drugs mainly used for nematode infections. (whocc.no)
The DDDs are based on the treatment of different nematode infections e.g. ascariasis (roundworm) and hookworm infections. (whocc.no)
As an example, the intestinal nematode Heligmosomoides polygyrus produces a TGF- β mimic during its invasive stages causing the induction of regulatory T cells (Tregs) in mice [ 9 ], a T cell subset that controls immunity in infection, allergy, and autoimmunity [ 10 ]. (hindawi.com)

Bacterial cystitis is most commonly the result of an ascending infection through the urethra caused by the patient's own enteric microbiota. (medscape.com)
Granulomatous inflammation can arise from bacterial, fungal, or parasitic infection. (medscape.com)
Sulfathiazole is very effective for basic Fin Rot infections with Pseudomonas as the bacterial pathogen. (americanaquariumproducts.com)
This category will also be used in primary coding to classify bacterial infections of unspecified nature or site. (cdc.gov)

The species and its interactions with parasites, primarily with ectoparasitic ticks, has been under continuous study for 40 y at a site in South Australia (56). (researchgate.net)
We hope that these data will ultimately improve our ability to place parasites in food webs, and thus improve our understanding of the connections and interactions that dictate food web dynamics. (datadryad.org)
This may be an indication of their pivotal role in immune mechanisms during host-parasite interactions. (biomedcentral.com)

The free-swimming larval forms of parasites found in an intermediate host. (lookformedical.com)

Important features exhibited by adult digenetic trematodes are summarized below (see Features of digenic trematodes). (medscape.com)
Adult isolates for four species recovered from natural and experimental infections were also identified. (biomedcentral.com)
Typically, adult stages of the parasite are found in the respiratory systems of reptiles, usually within the lungs and/or trachea (windpipe). (ufl.edu)

Infection with the obligate intracellular organism Chlamydia trachomatis (immunotypes D-K) frequently associates with other lower genitourinary (GU) tract infections. (medscape.com)
The mode of action is generally by paralysing parasites, which allows the host body to easily remove or expel the invading organism. (americanaquariumproducts.com)
Overview of Parasitic Infections A parasite is an organism that lives on or inside another organism (the host) and benefits (for example, by getting nutrients) from the host at the host's expense. (msdmanuals.com)
A parasite is an organism that lives on or in a host organism and gets its food from or at the expense of its host. (cdc.gov)

Methylene Blue is effective against superficial fungal infections of fish. (shopdynamictank.com)
Methylene Blue is safe for use with fish eggs and fry for the prevention of fungal infections. (shopdynamictank.com)

this paper) using TEM, show that there is absolutely no pathogenicity or host immune response resulting from the presence of the parasite within host tissues. (creationresearch.org)
Therefore most measures to determine presence of the parasite within the host often rely on using biological markers in host blood, serum and excreta. (biomedcentral.com)

Update on the diagnosis and treatment of food-borne trematode infections. (qxmd.com)

Sedimentation and floatation techniques were used for the detection of helminth parasites. (journaltocs.ac.uk)
Helminth infections induce strong type 2 cell-mediated immune responses, characterized among other things by production of high levels of interleukin- (IL-) 4 and IL-13. (hindawi.com)
We can take advantage of a variety of helminth models available, each of which have their own feature including life cycle, site of infection, or pathological mechanisms influencing macrophage biology. (hindawi.com)
Here, we reviewed the recent advances from the laboratory mouse about macrophage origin, polarization, activation, and effector functions during parasitic helminth infection. (hindawi.com)
Type 2 cell-mediated immunity is a general feature of helminth infection regardless of the multivariate sites of colonization of the numerous helminth species [ 11 ] and is conserved from jawed fish to mammals [ 7 ]. (hindawi.com)
Studies on mouse models of helminth infections have provided essential findings towards understanding type 2 immunity induction as well as its effector functions [ 12 ]. (hindawi.com)

Occupational and recreational activities in close contact with freshwater, e.g., fishing, doing laundry and bathing present the main risk of infections. (biomedcentral.com)
The freshwater New Zealand snail, Potamopyrgus antipodarum , and its common parasite, Microphallus sp. (evolutionary-ecology.com)

Furthermore, Cryptosporidium infections have been reported in at least 57 reptilian species [14], with chronic cryptosporidiosis and lethality in some snakes [14,15]. (researchgate.net)
Chronic infections are invariably associated with severe morbidity [ illness ]. (fsai.ie)
Such evolution may be explained by different phenomena, the most evident being that many helminths undertake specific multiorgan migratory trajectories before reaching their final destination such as the lung, intestine, liver, or blood vessels where they can persist and cause chronic infections. (hindawi.com)
Chronic inflammation from a parasitic infection is a known cause of CCC. (acsh.org)

The purposes of this study are to review some of the design-like behaviors and structures of this group of parasites, to search for a reasonable explanation for their existence in the evolutionary literature, and to provide a creation-based explanation for their origins. (creationresearch.org)
5. We have shown that by focussing on a single host species and a single taxonomic group of parasites, we can remove a certain amount of variation recorded by broader isotope studies. (datadryad.org)

1987), little damage was seen in infected mosquitofish, whereas the same species of parasite caused significant damage and inflammation in infected swordtails. (ufl.edu)
In celebration of the enormous diversity of parasites and to highlight their importance, we created this blog, which showcased a species of parasite every day. (blogspot.com)

Fecal samples, collected in July 2020 and April-May 2021 from 17 Bryant's woodrats, Neotoma bryanti Merriam, from 3 sites in San Diego, Orange, and San Bernardino counties, California, were examined for coccidial parasites. (bioone.org)
The fecal ova and parasite test includes evaluation for cysts and trophozoites of intestinal protozoa and larvae, eggs, and adults of intestinal helminths. (medscape.com)
Results are qualitative for most parasites due to the intermittent nature of their presence in fecal samples, and significance regardless of quantity. (medscape.com)

A safe and effective drug, namely praziquantel, is currently used for mass drug administration programs in endemic settings as well as for treatment of individual acute infections. (biomedcentral.com)
At times, tourists present with severe acute infection and unusual problems including paralysis. (who.int)
CLASSIFICATION OF DISEASES AND INJURIES I. INFECTIOUS AND PARASITIC DISEASES (001-139) Includes: diseases generally recognized as communicable or transmissible as well as a few diseases of unknown but possibly infectious origin Excludes: acute respiratory infections (460-466) influenza (487. (cdc.gov)

Fish are often speckled with 'black spots' caused by metacercarial trematode infection, inducing a host response. (researchgate.net)
They also vary in metacercarial cyst shape and thickness, location of infection within the second intermediate host, and the specific host type. (creationresearch.org)

In addition, tickborne rickettsia and protozoan parasites have also been identified in ticks associated with T. rugosa (55) . (researchgate.net)
Secondary uses are for the control of some external protozoan parasites of fishes. (shopdynamictank.com)

Mixed infections were observed in 17% of positive samples. (journaltocs.ac.uk)
We also demonstrated that including a broader range of samples (e.g. host food and faeces, multiple parasite life stages) helped understand the metabolic mechanisms used by the various participants, and that using carbon stable isotope values and C:N ratios allowed to identify an important lipid requirement of these trematode parasites. (datadryad.org)
Ideally, a series of 3 samples should be submitted, with collection every other day because of the intermittent nature of parasite shedding. (medscape.com)
Samples are not routinely accepted on patients who develop diarrhea after 3 or more days of hospitalization because parasites are rarely a cause of nosocomial diarrhea. (medscape.com)

Anisakis simplex sensu stricto is a parasite infecting several commercial fish species in the Northeast (NE) Atlantic, known to be the aetiological agent of the human zoonosis anisakiasis. (researchgate.net)
The rising popularity of undercooked or raw seafood containing larvae of the Anisakis parasite has led to issues of public health concern due to allergic manifestations. (researchgate.net)
From a human infection perspective, the most common roundworms are from the family of Anisakidae and include Anisakis spp. (fsai.ie)

The appearance of the fish, as well as the amount of tissue damage done by the parasite, will depend on the fish species infected, whether or not the fish has been infected before, and the species and number of pentastomes present. (ufl.edu)

2. To circumvent this, we focused on a single snail host, Zeacumantus subcarinatus , and three of its trematode parasites. (datadryad.org)

While more than 40 species are recognized as parasites of mammals, only 8 cause significant human infections. (logicalimages.com)
These parasites are found in man and other mammals. (lookformedical.com)

The trematode infection would certainly create inflammation and blockage of the duct, even if it does not excrete any specific carcinogens. (blogspot.com)

An overview of trematode1 parasitology from the evolution and creation perspectives is presented, including a discussion of the design-like features of these parasites. (creationresearch.org)

Parasitic helminths generally induce strong type 2 immunity that normally controls parasite infection and is characterized by production of type 2 cytokines like interleukin- (IL-) 4, IL-5, and IL-13 by innate cells (group 2 innate lymphoid cells (ILC2s), basophils, eosinophils, neutrophils, and macrophages) and CD4 + T helper 2 (Th2) lymphocytes. (hindawi.com)
An important aspect about type 2 cell-mediated responses against parasitic helminths is that they are induced for controlling parasite infection but they also mediate the tolerance of parasite persistence [ 1 ]. (hindawi.com)

The intensity of infection was very light to light in clams, very soft to severe in oysters and very soft to moderate in mussels. (bvsalud.org)
to see how severe your infection is. (msdmanuals.com)
Most infections are asymptomatic but those people with severe infection can have abdominal pain and fatigue. (acsh.org)
Individuals suffering from severe infections can have an enlarged liver with abdominal discomfort, intense itching, loss of appetite or no appetite, weight loss, nausea, vomiting, and indigestion. (acsh.org)

Most have an enclosing spiral shell, and several genera harbor parasites pathogenic to man. (lookformedical.com)

For 2 years, the parasite communities of metamorphic northern leopard frogs from 7 agricultural wetlands were compared with those from 2 reference wetlands to study differences in parasite community diversity and abundance of various species under pristine conditions and 3 categories of disturbance: only agricultural landscape, only pesticides, and agricultural landscape with pesticides. (concordia.ca)
With a constant risk of parasites becoming resistant to many anti-parasitic drugs, it is also pertinent to quantify parasite abundance so that drug efficacy can be accurately assessed, i.e. to establish whether there had been a significant, if not complete, reduction in parasite load following a targeted treatment. (biomedcentral.com)

Most people with fluke lung infections do not develop symptoms. (msdmanuals.com)
Doctors diagnose lung fluke infections when they see eggs in a person's sputum or stool. (msdmanuals.com)

A commonly identified form of ectopic paragonimiasis involves parasite migration into the brain (typically causes meningoencephalitis or neurological deficits / seizures due to space occupying lesions / cysts, typically 12-16 months after exposure). (logicalimages.com)

Within 2-3 weeks after the initial ingestion, the parasites migrate through the diaphragm into the pleural space and/or lungs as well as other organs including the central nervous system and skin. (logicalimages.com)
For example, camels have been noted to have serologic evidence of infection with Coxiella burnetii, but human cases of Q fever as a result of contact with camels or ingestion of camel milk have often been poorly documented. (scienceopen.com)

Schistosome infections are listed among the 20 neglected tropical diseases (NTDs) targeted by the World Health Organisation (WHO) for elimination by 2030 [ 1 ]. (biomedcentral.com)
As these schistosome antigens disappear from the urine within 24-48 hours of the host being treated and fully clearing the infection , it enables differentiation between active parasites and refugia (i.e. juvenile parasites remaining in the body post-treatment that may not produce eggs, these require over a week to reach maturity). (biomedcentral.com)

The large-scale screening revealed infections with five Echinostoma spp. (biomedcentral.com)

The main reason for this scarcity is the lack of an obvious pattern in the ratio of nitrogen stable isotope values ( δ 15 N) of parasites in comparison to their host tissues, which would be key to understand any host-parasite system dynamics. (datadryad.org)

According to the World Health Organisation, "early and light infections often pass unnoticed, as they are asymptomatic or only scarcely symptomatic. (fsai.ie)
Most infections are asymptomatic. (fsai.ie)

This parasite dominated communities in localities surrounded by the most agricultural land, suggesting generalist parasites may persist in disrupted habitats. (concordia.ca)

A number of empirical studies have shown that animals characterized by a bolder, more active, risk-taking phenotype often harbor different intensities and species of parasites than those exhibiting a shy, less active, more risk-averse phenotype. (adriennebmora.com)
Although the infection is rare in the West, travelers from endemic regions may harbor the infection and introduce it to non-endemic areas. (acsh.org)

In the southern Appalachian Mountains, U.S.A., the trematode Metagonimoides oregonensis , a parasite of raccoons and mink, primarily uses larvae of the salamander Desmognathus quadramaculatus as a second intermediate host. (bioone.org)

Of note, these organisms are not typically considered parasites. (cdc.gov)

This lifecycle choice is not only more damaging for the host, but also means that the root causative agent of illness, the mature parasite within the host, is not easily accessible without some kind of intrusive method. (biomedcentral.com)

In 1912, Harujiro Kobayashi corrected the classification that the differences in sizes were due to the nature of the host and intensity of infection, and had nothing to do with the biology. (wikipedia.org)
In contrast, the intensity of F. magna infection in Galba sp. (cambridge.org)

The ova and parasite examination does not routinely detect coccidia (Cryptosporidium or Cyclospora) or microsporidia. (medscape.com)
See Considerations for appropriate test methodologies to detect these parasites. (medscape.com)

for fin and tail rot, ulcerations, mouth fungus and clamped or collapsed fins, Columnaris (mild to moderate infections ONLY), and hemorrhagic septicemia (although not effective to Aeromonas infections of the gut). (americanaquariumproducts.com)

It's not a 'treatment' but it IS an impediment of consequence to ciliate and other 'swimming' microscopic parasites. (koivet.org)
Microscopic examination of concentrated specimen: Concentration by sedimentation or flotation aids detection of small numbers of organisms by removing background debris and concentrating parasites. (medscape.com)

See this post from the start of 2011 where we discuss the sheer scale of parasite biodiversity, and this post from the end of 2011 pretty much summarizes the mission of this blog. (blogspot.com)

Organisms6

Diseases1

Phenomena and Processes1

Flukes24

Cestodes2

Nematodes1

Genus4

Snails15

Schistosomiasis14

Fasciola5

Zoonotic8

Infect3

Schistosoma2

Occur5

Hosts12

Prevalence5

Bile ducts2

Humans10

Worms2

Nematode3

Bacterial4

Interactions3

Larval forms1

Adult3

Organism4

Fungal2

Presence of the parasite2

Diagnosis1

Helminth6

Freshwater2

Chronic4

Group of parasites2

Species of parasite2

Fecal3

Acute3

Metacercarial2

Protozoan parasites2

Samples4

Anisakis3

Fish species1

Snail1

Mammals2

Inflammation1

Parasitology1

Helminths2

Severe4

Genera1

Abundance2

Lung2

Paragonimiasis1

Ingestion2

Schistosome2

Echinostoma1

Host tissues1

Asymptomatic2

Habitats1

Harbor2

Larvae1

Typically1

Causative1

Intensity2

Detect2

Hemorrhagic1

Microscopic2

Biodiversity1