Strongyloides stercoralis

**Semantic type:** Animal

**Definition:** A species of human pathogenic parasitic roundworm in the family Strongyloididae. The species alternates between free-living and parasitic cycles, with the potential for autoinfection and multiplication within the host. Infection with S. stercoralis usually results in asymptomatic chronic infestation of the gut, but may also cause a severe, persistent diarrhea.

**Synonyms:** - STRONGYLOIDES STERCORALIS