Strongyloides - Learning Issue: Strongyloides Stercoralis...

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Learning Issue: Strongyloides Stercoralis Definition Strongyloides stercoralis is a common enteric helminthic parasite that in an immunocompetent host causes an infection that is asymptomatic or characterized by GI symptoms. In an immunocompromised host the infection can be devastating and carries a 60-85% mortality rate. endemic in Appalachian US and Sub-Saharan Africa, South and Southeast Asia, Central America, and South America. Etiology Strongyloides larvae exist in 2 forms: filariform infective larvae and a free-living rhabditiform larvae that lives in soil independent of a human host. Infection occurs when exposed skin contacts contaminated soil. The larvae penetrate the skin and migrate via the lymphatics and venules toward the pulmonary circulation. After penetration into the alveoli, the larvae continue their migration up the respiratory tract until they are swallowed. Filariform larvae rest in the small intestine. Symptoms
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This note was uploaded on 02/18/2012 for the course PAS 600 - 601 taught by Professor Garrubba during the Fall '10 term at Chatham University.

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Strongyloides - Learning Issue: Strongyloides Stercoralis...

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