Kitten Vaccination Schedule: What Shots Your Kitten Needs and When
Kittens need a series of vaccines, not a single shot, because the antibodies they got from their mother's milk fade at an unpredictable rate over the first few months. Vets space boosters out to catch whatever window that protection runs out in. Here's the schedule most vets follow, based on the AAHA/AAFP feline vaccination guidelines, and what each vaccine is actually protecting against.
Core vaccines explained
"Core" means every kitten should get it, regardless of lifestyle. The main one is a combination vaccine called FVRCP, which covers three diseases in one shot: feline viral rhinotracheitis (a herpesvirus), calicivirus, and panleukopenia (also called feline distemper or feline parvo). All three spread easily and panleukopenia in particular is frequently fatal in unvaccinated kittens, which is why this combination is considered non-negotiable rather than optional.
The full schedule
| Age | Vaccine | Notes |
|---|---|---|
| 6 to 8 weeks | FVRCP (1st dose) | First vaccine visit, usually paired with a general wellness check and fecal parasite test |
| 9 to 11 weeks | FVRCP (2nd dose) | Boosters continue every 3 to 4 weeks regardless of exact age at the first dose |
| 12 to 16 weeks | FVRCP (final dose) + Rabies | Rabies can be given as early as 12 weeks depending on state law and the vaccine brand used |
| 12 to 16 weeks | FeLV (if recommended) | Two doses, 3 to 4 weeks apart, considered core for kittens under 1 year by AAHA |
| 1 year | FVRCP, Rabies, FeLV boosters | After the kitten series, most vaccines move to an annual or triennial schedule |
The exact ages your vet uses may shift by a week or two depending on when you first bring the kitten in, that's normal and not something to worry about. What matters more is not skipping doses in the series, since a kitten that gets an early dose while maternal antibodies are still active may not build full immunity from that one alone.
Non-core vaccines
Feline leukemia virus (FeLV) is treated as core for kittens specifically, since exposure risk and the consequences of infection are both high in young cats, but it becomes optional for adult cats depending on whether they'll have contact with other cats. Other non-core vaccines, like feline immunodeficiency virus (FIV) or Bordetella, are only relevant for specific situations your vet can flag, most kittens in a typical single-cat household won't need them.
Rabies requirements
Rabies vaccination timing and whether it's legally required at all depends on your state or country. Even where it's not strictly mandated, it's worth doing anyway since rabies is fatal and transmissible to people, and many boarding facilities, groomers, and travel requirements will ask for proof regardless of local law.
What to expect at each visit
Mild soreness at the injection site, low energy, or a slightly reduced appetite for a day afterward are common and not a concern. Contact your vet the same day if you see facial swelling, hives, repeated vomiting, or trouble breathing after a vaccine, these reactions are uncommon but need prompt treatment when they happen.
Cost considerations
A full kitten vaccine series typically runs a few hundred dollars total across all the visits, though this varies a lot by region and clinic. Many shelters and low-cost clinics offer the same core vaccines at a reduced price, which is worth looking into if cost is a barrier, since skipping the series entirely carries real risk rather than just being a matter of preference.
Frequently asked questions
What happens if I miss a booster appointment?
Go in as soon as you can rather than skipping it. Most vets will just resume the series from where it left off rather than starting over, though a long enough gap may mean restarting depends on the specific vaccine and how much time has passed.
Can indoor-only kittens skip some vaccines?
Core vaccines are still recommended for indoor cats, since exposure can happen in small ways (an open door, a trip to the vet, a new pet coming into the home). Non-core vaccines are more reasonably skipped for a strictly indoor cat with no contact with other animals.
Do adult cats need yearly vaccines forever?
Not necessarily every single vaccine every year. Many core vaccines are approved for a 3-year interval in adult cats after the kitten series and first annual booster, though your vet may still recommend an annual visit for other reasons.
Sources
- AAHA/AAFP, "Feline Vaccination Schedule for General Practice"
- PetMD, "Kitten Vaccination Schedule and Costs"
- UC Davis School of Veterinary Medicine, "Vaccination Guidelines for Dogs and Cats"
This article is for general information and isn't a substitute for advice from your own veterinarian, who can build a vaccination plan around your kitten's specific health and lifestyle.
