Feline panleukopenia, also called
feline infectious enteritis, is a leading cause of death in kittens. It has
been called feline distemper, but it bears no relation to the virus that causes
distemper in dogs. There may, however, be crossover infectivity between cats
and the newer forms of parvovirus isolated in dogs.
Panleukopenia virus is present wherever there are susceptible animals. Mink,
ferrets, raccoons, and wild cats all serve as a reservoir. The virus is highly
contagious. It is spread by direct contact with infected animals or their
secretions. Contaminated food dishes, bedding, litter boxes, and the clothes or
hands of people who have treated an infected cat are other routes of
Cats can develop a fear of people they don’t know for many reasons. Companion felines have unique personalities, and some are just more outgoing than others. However, if a cat is calm and friendly with his family but afraid of visitors, it’s often because he didn’t have enough experience meeting new people when he was very young. To be social and comfortable with all kinds of people, a cat must have frequent opportunities to meet numerous new and different people in low-key, pleasant circumstances...
The panleukopenia virus has a special affinity for attacking white blood
cells. The reduction of circulating white cells (leukopenia) gives the disease
its name. Signs of acute illness appear two to ten days after exposure. Early
signs include loss of appetite, severe apathy, and fever up to 105°F (40.5°C).
The cat often vomits repeatedly and brings up frothy, yellow-stained bile. The
cat may be seen crouching in pain, his head hanging a few inches over the
surface of the water bowl. If he is able to drink, he immediately vomits. With
pain in the abdomen, the cat cries plaintively.
Diarrhea may appear early in
the course of the disease, but frequently comes on later. The stools are yellow
or blood-streaked. In young kittens (and some older cats), the onset can be so
sudden that death occurs before the owner realizes the cat is ill. It may seem
as if the cat was poisoned.
Panleukopenia can be transmitted to kittens both before and shortly after
birth. In such cases, the mortality rate is 90 percent. Kittens recovering from
neonatal infection may have cerebellar brain damage and exhibit a wobbly,
jerky, uncoordinated gait that is noted when they first begin to walk.
Secondary bacterial infections are common. The bacterial infection, rather than
the virus itself, may be the cause of death.
A white blood cell count confirms the diagnosis. In-office tests for canine
parvovirus will also detect feline panleukopenia virus, which is a member of
the parvovirus family.