Yes, we recommend it. All cats should minimally be vaccinated with the FVRCP&C. Not vaccinating against other feline diseases is a risky proposition. The only way your cat could be safe is if you could guarantee that your cat will never be exposed to any other cats either intentionally or by accident. This includes not boarding your cat or admitting him to a veterinary hospital. It means not allowing your cat to socialize with outdoor cats that may come up to a screen door or window, and never bringing another cat into your home without first determining it is free of disease.