Strongyloidiasis epidemiology and demographics

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

It is thought to affect 30–100 million people worldwide, mainly in tropical and subtropical countries. Worldwide efforts are aimed at eradicating the infection in high-risk groups.

Epidemiology and Demographics

Incidence and Prevalance

• The global prevalence of Strongyloides is unknown, but experts estimate that there are between 30–100 million infected persons worldwide.
• In the United States, a series of small studies in select populations have shown that between 600-1000 per 100,000 persons sampled were infected.
• Studies in immigrant populations have shown a much higher percentage of infected persons ranging from 460-1000 per 100.000 persons.

Geographic distrubution

• Strongyloides is known to exist on all continents except for Antarctica, but it is most common in the tropics, subtropics, and in warm temperate regions.