That is why it is so important for cats to be properly vaccinated. Feline Leukemia Virus is another infectious disease for which there exists a vaccine but it is not as easily transmitted to cats as the upper respiratory diseases. There is a new vaccine for FIP however, statistics are still being gathered on the extent of the protection it provides to cats. Symptoms include sudden onset of fever, lack of appetite, dehydration, depression, vomiting, dizziness. Infected cats may show a decreased number of white blood cells.
Mortality rates can be high.
Depression and lack of appetite and fevers may be seen. Ulcers of the eye may develop and may lead to severe eye infections or blindness. Feline Calicivirus- is a respiratory disease similar to a human cold. It is caused by an RNA virus and is more resistant than FVR although its symptoms may appear less severe. Symptoms are similar to FVR but often include ulcers of the tongue.