Veterinarians across Kentucky are warning pet owners about bearcat fever, more commonly known as bobcat fever, a tick‑borne disease that can be deadly to domestic cats. The illness is caused by a microscopic blood parasite called Cytauxzoon felis, which is carried by ticks—especially the Lone Star tick—and spread from wild bobcats to house cats.
The disease has been confirmed in several parts of the state, and local veterinarians say a few cases have recently been seen here in Wayne County. Symptoms include high fever, lethargy, pale or yellow gums, and loss of appetite. Without early treatment, the disease can progress rapidly and is often fatal within days.
Experts urge cat owners to keep pets indoors and use tick prevention year‑round. Outdoor cats are at the highest risk, especially during late spring and summer when tick activity peaks.
If your cat shows sudden signs of illness after being outdoors, veterinarians recommend seeking immediate care—early diagnosis offers the best chance of survival.