Cat Vaccination Schedule

Yes. All cats — including strictly indoor cats — should receive FVRCP and rabies vaccines. Rabies vaccination is required by law in most US states regardless of indoor/outdoor status. Panleukopenia virus is extremely hardy and can be brought into the home on shoes or clothing. Indoor cats may also escape or encounter a bat (a common rabies vector) that enters the home.

Costs vary by location and veterinary practice. Typical ranges: FVRCP $25-50 per dose, Rabies $15-30, FeLV $25-50. A full kitten vaccination series (FVRCP + Rabies + FeLV) typically costs $150-300 total across all visits. Many shelters and low-cost clinics offer vaccination packages for $50-100. Some areas have free or subsidized vaccination events.

Kittens should receive their first FVRCP vaccine at 6-8 weeks of age, with boosters every 3-4 weeks until they're 16 weeks old. The rabies vaccine is typically given at 12-16 weeks. FeLV vaccination can start at 8-9 weeks. This multi-dose schedule is necessary because maternal antibodies (passed through the mother's milk) can interfere with vaccine effectiveness, and they fade at different rates in different kittens.

After the initial kitten series and the 1-year booster, FVRCP is typically given every 3 years for adult cats. Rabies boosters are given every 1 or 3 years depending on the vaccine type and local laws. FeLV boosters are given annually for at-risk cats (outdoor cats or those exposed to FeLV-positive cats). Your vet can tailor the schedule to your cat's specific risk factors.

Most cats experience no side effects or only mild, temporary ones. Common mild effects include slight lethargy, reduced appetite, and mild swelling at the injection site for 1-2 days. Serious adverse reactions are rare (about 1-2 per 10,000 vaccinations, per AAFP data). If your cat develops facial swelling, difficulty breathing, persistent vomiting, or hives, contact your vet immediately. These rare reactions are treatable when caught early.

FeLV (Feline Leukemia Virus) is a serious virus that causes cancer, blood disorders, and immune suppression. The American Association of Feline Practitioners (AAFP) recommends all kittens receive the initial FeLV vaccination series regardless of anticipated lifestyle, because future circumstances may change. For adult cats, ongoing FeLV vaccination is recommended for those that go outdoors or live with FeLV-positive cats. Strictly indoor adult cats in FeLV-free households may not need ongoing boosters.

While some non-rabies vaccines are available for purchase, veterinary experts strongly recommend having vaccinations administered by a veterinarian. Proper vaccine storage, handling, and injection technique matter for effectiveness and safety. Additionally, the pre-vaccination exam allows your vet to check for health issues. Rabies vaccines can only legally be administered by a licensed veterinarian in most jurisdictions.

Call your veterinarian rather than restarting the series on your own. In many cases, your kitten can simply receive the missed booster as soon as possible and continue from there, but the exact timing depends on age, how many doses were already given, and which vaccine was missed. Delaying too long can leave a gap in protection, especially for panleukopenia and FeLV.

Usually no. Cats with fever, vomiting, diarrhea, breathing trouble, or other signs of illness should be examined before vaccination. Mild stress alone is not always a reason to postpone, but vaccines work best when the immune system is not already under strain. Your veterinarian can decide whether to delay vaccines, treat another problem first, or proceed safely.