Aelurostrongylus abstrusus

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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/aelurostrongylus-abstrusus/, 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 Aelurostrongylus abstrusus, section by section: the opening sentences of 7 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, Aelurostrongylus abstrusus, at https://capcvet.org/guidelines/aelurostrongylus-abstrusus/. 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 First stage larvae are present in the feces of infected cats. Aelurostrongylus abstrusus is common in cats around the world.

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Disease

Clinical signs are usually absent. Clinical signs may mimic other diseases including feline bronchial disease or asthma, verminous pneumonia, pulmonary edema, and pulmonary contusion.

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Prevalence

Most common in cats that are allowed to hunt. Consistently found in cats throughout the world.

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Diagnosis

Diagnosis can be considered in cats with respiratory signs. Infection is confirmed by the demonstration of the first-stage larvae in the feces.

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Treatment

Crisi et al (2017) indicated efficacy using fenbendazole 50 mg/kg q24h for 3 days. One study (Gambino et al., 2016) indicated efficacy using fenbendazole 50mg/kg PO q24h for 14 days along with prednisolone 0.5mg/kg PO q24h for 10 days to decrease inflammation due to death of the nematodes.

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Control and Prevention

Cats should not be allowed to hunt to prevent ingestion of the intermediate hosts, or more likely the transport hosts.

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Public Health Considerations

No human health hazard appears to be associated with Aelurostrongylus abstrusus .

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Sources

  • capc-aelurostrongylus-abstrususCAPC · retrieved 2026-09-16
    CAPC Recommends First stage larvae are present in the feces of infected cats. Aelurostrongylus abstrusus is common in cats around the world. (Synopsis)

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