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Schistosoma mansoni is a water-borne parasite of humans, and belongs to the group of blood flukes (Schistosoma). The adult lives in the blood vessels (mesenteric veins) near the human intestine. It causes intestinal schistosomiasis (similar to S. japonicum, S. mekongi, S. guineensis, and S. intercalatum). Clinical symptoms are caused by the eggs.
In humans, symptoms can include abdominal pain, diarrhea and weight loss. However, many infected individuals may be asymptomatic. Eurytrematosis is diagnosed through fecal examination for the presence of trematode eggs. Treatment typically involves the use of anthelmintic drugs such as praziquantel, which can effectively kill the adult parasites.
Pinworm infection (threadworm infection in the UK), also known as enterobiasis, is a human parasitic disease caused by the pinworm, Enterobius vermicularis. [3] The most common symptom is pruritus ani, or itching in the anal area. [1]
Due to the absence of obvious symptoms, [13] [14] hosts easily become infected with T. gondii and develop toxoplasmosis without knowing it. Although mild, flu-like symptoms occasionally occur during the first few weeks following exposure, infection with T. gondii produces no readily observable symptoms in healthy human adults.
All cases of suspected schistosomiasis should be treated regardless of presentation because the adult parasite can live in the host for years. [65] Schistosomiasis is treatable by taking a single dose of the drug praziquantel by mouth annually. [66] Praziquantel eliminates the adult schistosomes but does not kill the eggs and immature worms. [19]
It is a nematode (roundworm) and a common intestinal parasite or helminth, especially in humans. [7] The medical condition associated with pinworm infestation is known as pinworm infection ( enterobiasis ) [ 8 ] (a type of helminthiasis ) or less precisely as oxyuriasis in reference to the family Oxyuridae .