Cat Vaccinations, Explained Without the Jargon

Core protection every cat needs

Some vaccines are considered core because the diseases they prevent are widespread, severe, or a risk to people. For cats these typically cover feline panleukopenia, herpesvirus and calicivirus (often combined), plus rabies where law or region requires it. Even indoor cats need these; viruses travel on shoes and hands.

Kittens: the early series

Kittens get a series of shots a few weeks apart because their mother's immunity fades unpredictably. Missing the final booster can leave a gap in protection, so finishing the course on schedule matters more than the exact brand or day.

Non-core, based on lifestyle

Vaccines like feline leukaemia (FeLV) are recommended for cats who go outdoors or live with FeLV-positive cats. Your vet tailors these to your cat's real risk rather than a one-size list — an indoor-only cat and a free-roaming farm cat need different plans.

Boosters and the modern approach

Adult boosters are increasingly spaced out based on evidence and your cat's risk, not given blindly every year. An annual health check still matters even when a vaccine isn't due — it's often where the first sign of illness is caught.