Eosinophilia associated with Strongyloides infection, severe asthma, and central bronchiectasis

The primary causative agent of human strongyloidiasis is Strongyloides stercoralis, a soil-transmitted helminth of the Strongyloides genus.1 Although strongyloidiasis characteristically occurs through contact with contaminated soil, rare cases of human transmission have also been documented.1 The nematode can be found globally; however, its prevalence is higher in tropical and subtropical regions.1 Within the United States, the highest rates of strongyloidiasis are seen in immigrants, especially those coming from Latin American countries where intestinal parasites, such as S stercoralis, are endemic.

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