How often should cats be vaccinated?

Vaccinations for cats are usually given 21 days apart. Two-month-old kittens will receive a total of two doses of Cat 3 plus one rabies vaccination, with each shot 21 days apart. Cats that have reached one year of age as adults can receive another Cat IV injection, and thereafter every 1-3 years depending on the continuous immunisation period of the vaccine, and rabies vaccination can be given every 2-3 years.