Puppy Vaccination and Deworming Schedule

When to vaccinate and deworm a puppy – the quick schedule

A puppy's vaccinations start between the 6th and 9th week of life and repeat in a series until around the 14th–16th week, while deworming already begins at 2, 4, 6 and 8 weeks. The exact schedule is best set with a vet from the first visit.

Deworming should always come before vaccination, since parasites can weaken the immune system and reduce a vaccine's effectiveness. In Poland, the rabies vaccination is additionally mandatory and must be given no later than 30 days after the puppy turns 12 weeks old; once the primary series is complete, it's repeated every 12 months.

Week-by-week schedule – the key dates

Here's a simplified schedule (always confirm exact dates with your vet):

• Weeks 2, 4, 6 and 8 of life – first deworming, repeated at regular intervals.
• Weeks 6–9 of life – first dose of the primary vaccination.
• Weeks 10–12 of life – second dose in the vaccination series.
• Weeks 14–16 of life – third, usually final dose of the primary vaccination series.
• Within 30 days of week 12 – mandatory rabies vaccination in Poland.

Why the order and timing of vaccinations matter

Vaccinations are given in a series rather than as a single dose, because maternal antibodies present in a puppy's blood can interfere with building its own immunity after vaccination – only a few doses spaced apart give confidence that immunity has genuinely developed. That's why delaying or skipping a dose isn't neutral – it may require repeating part of the series rather than just "catching up" with the schedule.

Deworming before vaccination has a similar rationale: internal parasites weaken a puppy's body, so a vaccine given to a puppy burdened with parasites may work less effectively. That's why the deworming and vaccination schedules are linked rather than two independent tasks – getting the order right genuinely increases the effectiveness of the protection.

Puppy from a breeder, a shelter, or with an unknown history – what takes priority

If the puppy comes from a trusted breeder, it likely already has a vaccination and deworming series underway – the first vet visit should verify the documentation and continue the schedule.

If the puppy comes from a shelter or has an unknown health history, the vet may recommend starting the series from scratch or running additional tests, rather than assuming everything has already been done.

If you're planning to travel abroad with a young dog, check the vaccination schedule required in the destination country – it may differ from the Polish minimum.

If there's already an older dog at home, remember that a puppy still going through its vaccination series has limited immunity – it's worth limiting contact with unfamiliar dogs on walks until the series is complete.

The most common mistakes with puppy vaccination and deworming

Skipping deworming before the first vaccination is a common mistake – it reduces the vaccine's effectiveness in a body weakened by parasites.

Another mistake is letting a puppy out too early for walks with unfamiliar dogs, before the vaccination series is complete.

A frequent mistake is also pushing vaccination dates back "by a week or two" without consulting the vet – this may require repeating part of the series.

The last mistake: forgetting the mandatory rabies vaccination, which in Poland has its own, legally required deadline.

FAQ – frequently asked questions about puppy vaccination and deworming

When should a puppy get its first vaccination?

The first vaccination is usually given between the 6th and 9th week of a puppy's life, and the exact timing depends on its health and the schedule set with the vet.

How many times should a puppy be dewormed before vaccination?

A puppy is usually dewormed at weeks 2, 4, 6 and 8 of life – deworming should always come before the next vaccination.

When does a puppy need the rabies vaccination in Poland?

The rabies vaccination is mandatory in Poland and must be given no later than 30 days after the puppy turns 12 weeks old.

What happens if a vaccination dose is missed?

Missing a dose may require repeating part of the vaccination series – that's why any deviation from the schedule is worth discussing with the vet.

Can a puppy go for walks before finishing its vaccination series?

A puppy can go for walks, but contact with unfamiliar dogs and places with heavy animal traffic is best limited until the full vaccination series is complete.

What matters more than a single date?

A puppy's vaccination and deworming schedule is built on order and consistency, not one-off actions. Setting it up with a vet from the first visit makes it easier to stick to. This is a general outline, though – the exact dates and doses must ultimately be confirmed by a vet, taking the health of your specific puppy into account.

How can DailyPetCare help?

DailyPetCare lets you log your puppy's entire vaccination and deworming schedule along with reminders for upcoming dates, so no dose gets missed.