A infectious disease caused by an intestinal parasite called Strongyloides stercoralis (round worm). Infestation can occur directly through broken skin or through ingestion. Symptoms can take decades to develop in some cases. In rare cases, reinfection occurs and the parasites travel to other parts of the body such as the liver and lungs which can cause serious symptoms. The condition is highly deadly in immunocompromised patients. See also Anguillulosis