FVRCP, or Feline Viral Rhinotracheitis Calicivirus Panleukopenia, aka "feline distemper", is a core vaccine in cats. This vaccine is started at 6-8 weeks of age, and boostered every 3-4 weeks until the cat is 16 weeks old, then given yearly. The viruses covered in the vaccine cause upper respiratory infections and severe gastrointestinal (GI) problems. Even if your cat is strictly indoors, this important vaccine is recommended, as the viruses are hardy, and can be spread by you petting another cat and bringing the virus into your household!
