Geographic distribution

S. stercoralis infection is associated with fecal contamination of soil or water. Hence, it is a very rare infection in developed economies. In developing countries, it is less prevalent in urban areas than in rural areas (where sanitation standards are poor). S. stercoralis can be found in areas with tropical and subtropical climates.

Strongyloidiasis was first described in the 19th century in French soldiers returning home from expeditions in Indochina. Today,

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