unvaccinated cats

Feline Panleukopenia is a serious and highly contagious viral disease. It is fairly common in unvaccinated cats and kittens and is often fatal. The panleukopenia virus has a tendency to invade rapidly growing cells such as those of the digestive system, lymph tissue, bone marrow and the developing nervous system. Any kitten or cat that has not been vaccinated against this disease is at risk.