Feline Panleukopenia (Feline Distemper) is a highly contagious, deadly parvovirus of cats. It kills rapidly dividing cells in the intestine, bone marrow, and developing fetus. It causes severe deficiency of all white blood cells (pan-leukopenia).
This condition requires veterinary attention.
If your animal shows the Key or Common signs listed, please visit a clinic immediately. This is a life-threatening emergency.
Report Case / Get HelpTransmitted via contact with infected feces, urine, or fluids. The virus can survive in the environment for years and is resistant to many disinfectants.
Sudden onset of high fever, vomiting, and profound depression. Cats may sit over water bowls but not drink (“hanging” behavior). Bloody diarrhea follows. Death can occur in hours.
Fecal Parvo SNAP tests for dogs often work for cats too. Blood work shows extremely low white blood cell counts.
Aggressive isolation and intensive care. IV fluids, antibiotics to prevent sepsis (due to low WBCs), and nutritional support. Anti-emetics are crucial.
Vaccination (FVRCP) is extremely effective and is a core requirement for all cats.
Mortality is high (50-90%) in kittens. Adult cats have a better chance. Survivors have lifelong immunity.
Medical DisclaimerThis information is for education only and does not replace examination, diagnosis, or treatment by a qualified veterinarian.