<unk>  is the scientific name of a human parasitic roundworm causing the disease of strongyloidiasis.<unk>  is a nematode, 2.5 mm-long, that is a parasite of humans. The adult parasitic stage lives in tunnels in the mucosa of the small intestine. The genus<unk>  contains 53 species and S.<unk>  is the type species. S.<unk>  has been reported in other primates and occasionally in dogs. However, it seems that the species in dogs is typically not S.<unk> , but another species S. canis. Non-human primates are more commonly infected with S. fuelleborni and S. cebus although S.<unk>  has been reported in captive primates. Other species of<unk>  naturally parasitic in humans, but with restricted distributions, are S. fuelleborni in central Africa and S. kellyi in Papua New Guinea.
Strongyloides stercoralis
Ascaris lumbricoides
Trichuris trichiura
Schistosoma mansoni
Ancylostoma duodenale
Oesophagostomum
Clonorchis sinensis
Paragonimus westermani