Giardia is a protozoan parasite that infects the small intestine. It damages the intestinal wall, leading to malabsorption and chronic, foul-smelling, fatty diarrhea. It is a common zoonotic risk (can infect humans).
This condition requires veterinary attention.
If your animal shows the Key or Common signs listed, please visit a clinic immediately.
Report Case / Get HelpFecal-oral transmission. Cysts are shed in feces and survive in cool, damp infective water or soil. Drinking from puddles is a common source.
Ingested cysts activate in the intestine. They attach to the wall and multiply. Some dogs are asymptomatic carriers; others develop persistent diarrhea and weight loss.
Fecal ELISA antigen test is the most sensitive method. Zinc sulfate fecal flotation can also visualize cysts.
Fenbendazole (Panacur) and Metronidazole are the treatments of choice. Bathing the pet on the last day of treatment is crucial to remove cysts from the fur and prevent reinfection.
Do not allow pets to drink from standing water. Pick up feces immediately. Good hygiene prevents human infection.
Excellent, though reinfection is common in contaminated environments.
Medical DisclaimerThis information is for education only and does not replace examination, diagnosis, or treatment by a qualified veterinarian.