Oct 20, 2021 · What Is Giardia in Cats? Giardia is a single-celled organism classified as a protozoan. It can live in the intestines of cats (and other animals, including dogs and humans) and cause severe gastrointestinal disease. It is spread by fecal-contaminated water, food, or soil. Giardia is found worldwide and in every part of the United States.

Feline Giardia infections can be subclinical, but the most common clinical sign is diarrhea.3 Historically, Giardia infections were diagnosed via microscopic examination of feces, but immunologic assays that detect antigen in the feces are …

Giardia infection in cats may lead to weight loss, chronic intermittent diarrhea, and fatty stool. The stool may range from soft to watery, often has a greenish tinge, and occasionally contains blood. Infected cats tend to have excess mucus in their feces. Vomiting may occur in some cases.

Mar 12, 2025 · Giardiasis occurs when a cat ingests Giardia. The Giardia is first consumed in its cystic form—the form found in feces, soil, or contaminated water. Ingesting soil during grooming, or...

Feb 3, 2025 · Giardia is a microscopic parasite that can cause diarrhea in cats; kittens and immunocompromised cats are more vulnerable, as are those living in multiple-cat environments such as shelters and catteries.

Apr 1, 2025 · Giardia in cats is a common intestinal infection caused by the microscopic parasite Giardia duodenalis (also called Giardia intestinalis or Giardia lamblia). This tiny troublemaker can wreak havoc on your feline friend’s digestive system, leading to uncomfortable symptoms and health concerns.

Feb 23, 2022 · In cats, diarrhea is a common sign of giardiasis; they may have unformed/soft, and/or pale, foul-smelling stool. Other potential signs include lethargy, abdominal discomfort, gas, and poor coat condition. Nausea and vomiting are uncommon in cats by may develop.

Oct 23, 2022 · To protect their pet, cat owners should understand what giardia is, how it’s contracted, its symptoms, and how it’s diagnosed and treated. Giardia in Cats Causes: How Do Cats Get Giardia? Giardia...

5 days ago · Any cat can pick up Giardia, but several factors could increase a cat’s risk. Cats with outdoor access are at a significantly higher risk due to their access to potentially contaminated soil, puddles, and the feces of other infected animals. Additionally, multi-cat households have a higher risk as they share litter boxes, food bowls, and even ...

Apr 9, 2025 · Giardia is a protozoan parasite that can cause significant diarrhea and gastrointestinal signs in several species. Giardia duodenalis can infect cats, dogs, and other animals and is highly contagious. G iardia duodenalis 1 is further classified into different assemblages, with assemblage F most often infecting cats.