What is highly virulent feline Calicivirus Disease?
This is an increasing concern in cats because there are more virulent forms of Feline Calicivirus (FCV) disease emerging in U.S. cat populations. There have been about 6 outbreaks recently. These outbreaks have involved healthy, calicivirus vaccinated adults that were mainly affected. FCV outbreaks spread rapidly in cats owned by clients or employees of veterinary clinics; FCV disease spread was limited to affected veterinary practices or shelter with no evidence of spread to the larger community. They resolved themselves in 2 months. FCV is a RNA virus in the Calicivirade family. These viruses have high mutation rates, with minimal repair. Some facts about the disease include: 33 to 50 percent mortality rate in adults more than likely kittens have severe disease Many affected cats were previously vaccinated. Bleach kills the virus Viral shedding last 16 weeks after recovery About 20% cats exposed had mild or no clinical signs.