Carnivore protoparvovirus 1 (CPPV 1) is a species of parvovirus that infects carnivorans. It causes a highly contagious disease in both dogs and cats. The disease is generally divided into two major genogroups: CPV-1 containing the classical feline panleukopenia virus (FPLV), and CPV-2 containing the canine parvovirus (CPV) which appeared in the 1970s.FPLV is known to infect all wild and domestic members of the felid (cat) family worldwide. It is a highly contagious, severe infection that causes gastrointestinal, immune system, and nervous system disease. Its primary effect is to decrease the number of white blood cells, causing the disease known as feline panleukopenia. It was once thought that only CPV-1 or FPLV infects cats. However, it has been confirmed that a feline panleukopenia illness can be caused by CPV 2a, 2b, and 2c.FPLV is commonly referred to as: 

feline infectious enteritis virus (FIE)
feline parvovirus (FPV or FP or "feline parvo")
feline parvoviral enteritisIt is sometimes confusingly referred to as "cat plague" and "feline distemper".In addition to members of the felid family, it can also affect other carnivorans (e.g. raccoon, mink). Etymology
Formed within English using elements derived from Greek: pan- a combining form meaning "universal" or "worldwide", -leuco- a combining form meaning (in biologic sciences) "white blood cell", and -penia a combining form meaning "loss of" or "decrease of". Thus the word means universal loss of white blood cells. The universal part refers to both its worldwide distribution and to the fact that all species of cats are infected.
For cats older than 16 weeks, 2 doses, 3 to 4 weeks apart is generally recommended, followed by a 6-month to 1-year booster. Thereafter, a booster vaccination every 3 years is usually recommended; a blood titer test can be done to determine individual antibody levels for catering the timing of boosters. References
External links
Feline Distemper (Panleukopenia) from The Pet Health Library
How to Limit Parvo in Shelters, Rescues and Transfer Animals