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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/alaria/, 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 Alaria, 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, Alaria, at https://capcvet.org/guidelines/alaria/. 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 Fecal sedimentations should be used for diagnosis of Alaria in infected dogs or cats. Keeping dogs and cats from hunting can prevent fluke infections, such as Alaria.

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Species

Dogs and Cats Alaria Egg of Alaria recovered by fecal sedimentation from dog, 110x69 µm

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Disease

Severity of disease is proportional to the number of flukes and duration of infection. Alaria spp. adults develop in the small intestine and are not usually associated with intestinal illness.

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Prevalence

Alaria prevalence can vary across the country. A recent study found the parasite in 13.4% of free-roaming cats in Oklahoma.

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Diagnosis

Eggs can be found in feces by fecal sedimentation. Eggs are dense and rarely float.

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Treatment

No drugs are labeled for Alaria, however praziquantel and epsiprantel are often used.

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Control and Prevention

Prevention of predation (hunting) and scavenging activity by confining dogs on a leash or in a fenced yard and keeping cats indoors will limit the opportunity for dogs and cats to acquire infection with trematodes.

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Public Health Considerations

A case of fatal disease associated with systemic infection with Alaria larvae and several cases of ocular infection have been reported following ingestion of undercooked frogs legs.

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Sources

  • capc-alariaCAPC · retrieved 2026-09-16
    CAPC Recommends Fecal sedimentations should be used for diagnosis of Alaria in infected dogs or cats. Keeping dogs and cats from hunting can prevent fluke (Synopsis)

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