KittenSchedule › When do kittens get shots?
When do kittens get shots?
The short answer: kittens get their first vaccine at 6–8 weeks old, then a repeat dose every 3–4 weeks until they're 14–16 weeks, with rabies given once between 12 and 16 weeks depending on local law. Boosters follow about a year later. Here's the timeline, and the reasoning that makes the dates make sense.
The timeline at a glance
- 6–8 weeks — first FVRCP dose (the core combo: herpesvirus, calicivirus, panleukopenia). If your kitten came from a shelter or breeder, this one is often already done — check the paperwork.
- 10–12 weeks — second FVRCP; usually the first FeLV (feline leukemia) dose, which is recommended for all kittens.
- 14–16 weeks — final FVRCP (the most important one) and second FeLV; rabies is typically given in the 12–16 week window as your local law requires.
- ~12–16 months — FVRCP and rabies boosters; FeLV booster per your vet's risk assessment. After this, most cats move to a 1–3 year cycle.
The full chart with what happens at each visit lives in the kitten vaccine schedule.
Why 6–8 weeks and not sooner?
Before about six weeks, antibodies from the mother's milk are still strong enough to neutralize most vaccines — a shot given too early is mostly cancelled out. After six weeks those maternal antibodies begin to fade, but on a schedule nobody can see from the outside. The vaccine series exists to bracket that uncertainty: by repeating doses every 3–4 weeks until 14–16 weeks, at least one dose reliably lands after the interference clears and the kitten's own immune system takes over.
Why the last dose matters most
It's tempting to fade out of the series once the kitten looks healthy and the first two visits went fine. Don't. In some kittens, maternal antibodies persist long enough to blunt every dose except the final one at 14–16 weeks — especially for panleukopenia, the deadliest of the core diseases. A kitten that quits the series at 12 weeks can look fully vaccinated on paper and carry a real gap in protection.
What if my kitten is older and never got shots?
Common with rescues and found kittens, and entirely fixable. A kitten or adult cat starting late doesn't need the full three-dose ladder — older immune systems aren't fighting maternal antibodies, so the catch-up series is shorter (typically two FVRCP doses 3–4 weeks apart, plus rabies and FeLV as indicated). Your vet will set the exact plan based on age and history; "unknown history" is a normal Tuesday for them.
What to expect after each visit
Mild sleepiness and a slightly tender injection site for a day or so are common and normal — many kittens nap hard the evening after shots and wake up themselves again. What's not normal: facial swelling, vomiting, hives, trouble breathing, or collapse, which are rare but mean an immediate call to the clinic. Plan vaccine visits for mornings when you can, so any reaction unfolds during business hours rather than at midnight.
What shots cost and where to get them
Prices vary widely by region and clinic type, so we won't invent numbers — but if budget is the obstacle, low-cost vaccine clinics run by shelters and humane societies are common, and many handle the entire kitten series. What matters is that the dates land in the right windows and you keep the record — the printable vaccine chart gives you a fridge copy, and the new kitten checklist has the full first-visit prep. For how shots interleave with deworming and spay/neuter, see the kitten schedule by age.
Frequently asked questions
At what age do kittens get their first shots?
At 6–8 weeks old — the first FVRCP dose. Earlier than that, maternal antibodies from nursing neutralize most vaccines, which is why the series starts when it does.
How many shots do kittens need in total?
Typically three FVRCP doses (6–8, 10–12, and 14–16 weeks), two FeLV doses 3–4 weeks apart, and one rabies shot between 12 and 16 weeks per local law — then boosters about a year later.
Can a kitten be around other cats before its shots?
Around known-vaccinated, healthy household cats, generally yes. Avoid unknown or outdoor cats and shared spaces with unknown vaccination status until 1–2 weeks after the final 14–16 week dose — panleukopenia spreads easily on surfaces.
My rescue kitten is 5 months old with no records. Is it too late?
Not at all. Older kittens start a shorter catch-up series — typically two FVRCP doses 3–4 weeks apart plus rabies and FeLV as indicated — because there's no maternal-antibody interference left to outlast.
A note from us: Always confirm timing with your veterinarian — schedules vary by region, breed, and health. KittenSchedule is a planning tool, not a substitute for veterinary care.
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