Enter your puppy's date of birth and tick the core doses it has already had. The checker shows which vaccinations are done, due soon, or overdue against the US (AAHA) or UK (BSAVA/WSAVA) core schedule.
Compare your puppy's age against the core series schedule. In the US (AAHA), the core DHPP series runs at 6, 9, 12, and 16 weeks, with rabies at 12-16 weeks. In the UK (BSAVA/WSAVA), DHPPi is given at 8 and 10 weeks with a final dose at 16 weeks. If your puppy has passed the age for a dose and not had it, that dose is overdue. The checker above flags each core dose as done, due soon, or overdue based on the date of birth you enter.
If the gap since the last dose is short (under about 6 weeks), the vet will usually continue the series. If the gap is longer, the vet may restart the primary series with two doses 3-4 weeks apart, because a single late dose may not produce reliable immunity if maternal antibodies were still interfering earlier. Never assume partial immunity from an incomplete series. Book a vet appointment to confirm the catch-up plan, particularly for rescue puppies with an unknown history.
No. This tool tracks the core puppy series only -- DHPP/DHPPi, plus rabies in the US. Non-core (lifestyle) vaccines such as Bordetella (kennel cough), Leptospirosis in the US, Lyme, and Canine Influenza depend on where you live and how your puppy lives, so there is no single 'up to date' answer for them. Discuss non-core needs with your vet. In the UK, Leptospirosis is included in the standard primary course, so it is shown alongside DHPPi.
Your puppy is considered fully protected roughly two weeks after the final core dose. In the US that is around 18 weeks of age (16-week final dose plus two weeks); in the UK, WSAVA's recommended 16-week final dose means full protection around 18 weeks as well, though many UK vets consider a puppy protected two weeks after the second jab for parvovirus and distemper. Until then, avoid unknown dogs and public ground where parvo risk is higher.
Updated 2026-06-10