What causes giardia in cats?

According to PetMD.com, giardia infection in cats is caused by eating infected feces and drinking infected water. Giardia parasites prefer cooler environments, which is why the infection is easily spread through water. Giardia is often spread in places with close quarters such as kennels or shelters.

Cats infected with the giardia parasite can be tested by a veterinarian. Because the parasite can be detected in feces, tests for giardia infection typically involve a fecal smear. Giardia parasites can be treated with prescription medicine and by thoroughly bathing cats to remove any traces of the parasite. To help prevent the infection, don't allow cats to drink outdoor water and clean up thoroughly after cats use the bathroom.