Feline Distemper, panleukopenia, is the most widespread disease of cats.  It is almost always
fatal in kittens, first causing severe diarrhea, vomiting, fever, and lethargy.

Pneumonitis infection is similar to a human cold, with symptoms such as coughing and sneezing.  
The disease can sometimes be passed to humans, causing pink eye.

Luekemia in cats causes tumors, malignant changes in blood-forming cells, and appetite or weight
loss.  There is no cure, but it can be prevented by a vaccine.

Rhinotrachetis is an upper respiratory viral infection that causes fever, eye and nose discharge,
coughing, and salivation.  It is not usually fatal, but cats can be carriers of it for life.

Rabies is a deadly disease for animals and human, is caused by a virus that spreads through
nerve fibers and the spinal cord, eventually attacking the brain.  Rabid wild animals such as
raccoons, squirrels or skunks can pass the disease to pets through bites.