Cat vaccination frequency varies depending on the lifestyle of a cat, and the vaccinations that they need:No need to vaccinate cats every year with the core vaccine (flu and panleukopenia), although the WSAVA recommendations are that high-risk cats benefit from an annual flu booster. Rabies may also be required depending on where you live.All cats should have a full booster vaccination every 3 years.For indoor cats, the non-core vaccines (like leukemia) won't be needed unless the diseases are present in the household already. For those cats that will benefit from these non-core vaccines, an annual booster is needed.The same vaccine is used for the initial vaccine course and the booster vaccines, the only difference is that the initial course requires 2 or 3 vaccines (depending on the age of the kitten/cat) to ensure initial immunity is achieved.Full show notes and free guide to keeping your cat healthy