Feline Viral Rhinotracheitis (FVR)

A respiratory disease found in cats

Calici Virus (C)

An Upper respiratory virus that produces flu-like symptoms

Rabies (R)

A viral disease fatal to humans and other animals

Panleukopenia (P)

Commonly known as feline distemper, this is a viral infection caused be feline parvovirus

Feline Leukemia (FeLV)

This virus infects cells of the immune system (the white blood cells)killing or damaging them. It leaves cats vulnerable to a wide variety of other diseases and infections.