Strongyloidiasis

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This page quotes a published document. Everything below in quotation marks is copied word for word from https://capcvet.org/guidelines/strongyloidiasis/, published by CAPC and retrieved on 2026-09-16. The quotations are excerpts; the document itself is linked and is the authority. Nothing has been reworded.

This page quotes the Companion Animal Parasite Council guideline for Strongyloidiasis, section by section: the opening sentences of 8 sections, copied without change and linked to the guideline, which was retrieved on 2026-09-16. The guideline itself is the authority and carries the full text.

The guideline

Companion Animal Parasite Council, Strongyloidiasis, at https://capcvet.org/guidelines/strongyloidiasis/. Retrieved 2026-09-16. Each heading below is the guideline’s own, and the quotation under it is how that section begins. The full section, and the species tabs where the guideline gives them, are on the linked page.

Synopsis

CAPC Recommends Strongyloidiasis should be considered for any dog presenting with respiratory and/or gastrointestinal signs, especially in neonates and immunocompromised patients. Diagnosis is most often based on observing the characteristic first-stage larvae in feces.

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Species

Canine Strongyloides stercoralis is the causative agent of strongyloidiasis in canines and humans. Infections in domestic cats have also been reported.

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Disease

Dogs infected with S. stercoralis display a range of clinical signs, although many are asymptomatic. Clinical signs vary depending upon the severity of the disease.

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Prevalence

Strongyloides stercoralis is found infecting dogs and humans worldwide. The estimated global prevalence of canine strongyloidiasis is 6%.

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Diagnosis

Diagnosis is made by demonstrating first-stage larvae with characteristic rhabditiform esophagus, prominent genital primordium, and straight tail. This can be accomplished by the Baermann technique using a fresh fecal sample.

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Treatment

There are currently no approved anthelmintics for strongyloidiasis in dogs, and off-label treatments show reduced efficacy against migrating larvae. Repeated courses of anthelmintics are often required to eliminate infections.

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Control and Prevention

Prompt removal of feces from the yard will help prevent the contamination of the environment with large numbers of S. stercoralis larvae. Strict enforcement of leash laws and requiring owners to promptly remove their pets’ feces can limit environmental contamination of public areas with S. stercoralis .

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Public Health Considerations

Stronglyoides stercoralis is considered a zoonotic parasite capable of infecting humans. Clinical signs in humans are similar to those reported in dogs.

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Sources

  • capc-strongyloidiasisCAPC · retrieved 2026-09-16
    CAPC Recommends Strongyloidiasis should be considered for any dog presenting with respiratory and/or gastrointestinal signs, especially in neonates and immunocompromised patients. Diagnosis is most often (Synopsis)

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