How long does a dog's booster shot take?

The booster itself is a single appointment. What matters is how often: a booster one year after the puppy series, then every 3 years for the essential viral vaccines, and every year for leptospirosis or kennel cough. Your vet sets the dates from the record book.

At what age should you microchip a dog?

Microchip identification is compulsory in France before the age of 4 months, and before any sale or gift. It's carried out by the vet and registered with I-CAD. For travel abroad, the chip must be fitted before the rabies vaccination, otherwise the passport isn't valid.

Do you need to vaccinate your dog every year?

Not everything, every year. The essential viral vaccines are generally boosted every 3 years in an adult, whereas leptospirosis and kennel cough, with short-lived immunity, are redone each year. A serology titre test can even check the protection before revaccinating: talk it over with your vet.

Can you take a puppy out before its vaccines are finished?

Yes, and it even matters: the socialisation window closes before the vaccines are finished. You socialise in a controlled setting (healthy, vaccinated companions, clean places) while avoiding busy parks. Total isolation does more behavioural harm than the risk it's meant to avoid (AVSAB position).

Dog vaccines and boosters: the key milestones

Puppy first stepsPart of · Puppy first steps

Dog vaccines and boosters: the key milestones

Q: When should you worm your dog?

Puppies are usually wormed often in the first few months; then, in an adult, the frequency depends on lifestyle and is decided with your vet (ESCCAP-style guidance). Since some worms are zoonoses, it's a matter of family health too. Ask for a tailored protocol rather than a random schedule.

Q: How much does a dog vaccine cost?

There's no set fee: in France, vets set their own prices, which vary by clinic and region. The price almost always includes the consultation with a full examination, not just the injection. The simplest thing is to ask for a quote that breaks down the product, the consultation and any extra procedures.

Q: Is the rabies vaccine compulsory in France?

Not for every dog: rabies is only compulsory for travelling abroad and for category 1 and 2 dogs. France has been free of terrestrial rabies since 2001, and the real risk comes from unvaccinated dogs imported illegally. It's still strongly recommended if you travel.

9 min read

Vaccinating your dog prevents diseases that can kill him, such as parvovirus, a devastating puppy diarrhoea. Some, like leptospirosis, an infection picked up in dirty water, also pass to humans. A puppy gets his first injection at around 8 weeks, then boosters every 3 to 4 weeks until 16 weeks, and a final one at around 1 year. After that, the rhythm depends on each vaccine.

How a vaccine protects your dog

A vaccine trains the immune system to recognise a germ before the real encounter. A puppy hasn't built all his defences yet: in him, these diseases can kill, while a protected dog gets through with nothing worse than an off day. Parvovirus wrecks his gut, distemper attacks his nervous system, leptospirosis his kidneys; you'll find them set out just below. Some, like leptospirosis or rabies, also pass to humans: the vaccine protects your household, not just your dog. Keep in mind that no vaccine is 100 % protective.

Not all vaccines carry the same weight. Some protect against diseases so serious that they're recommended for every dog, others depend on the law or on your dog's lifestyle.

The essentials

DistemperA highly contagious virus that attacks the lungs, the gut and the nervous system, and is often fatal.

Infectious canine hepatitisCaused by a virus called adenovirus, it attacks the liver, the kidneys and the eyes, and can be fatal.

ParvovirusBloody diarrhoea that comes on suddenly and dehydrates fast: every unvaccinated puppy's worst enemy.

LeptospirosisA bacterium spread through rodent urine, very common in France: that's why it's on the list of vaccines recommended for almost every dog. Its protection is short-lived, hence a booster every year.

Law or travel

RabiesAlways fatal once it takes hold, in dogs as in humans. Mainland France has been free of terrestrial rabies since 2001: the vaccine is only compulsory to travel outside France, for category 1 or 2 dogs (so-called attack dogs, or guard and defence dogs), and in the départements of French Guiana and Mayotte. Outside those cases it's a choice, to discuss with your vet.

Lifestyle

Kennel coughA dry, contagious cough that spreads fast wherever dogs mix: boarding kennels, training clubs, group classes. Worth it if your dog goes to these places.

LeishmaniasisA serious and often incurable disease that damages the skin and the kidneys, and wears the whole body down over time. It's spread by the bite of a small fly, the sandfly, found mainly around the Mediterranean. Worth considering with your vet if you live there or travel there with your dog.

The puppy vaccination schedule

Your vet sets the exact schedule with you: it can vary by region, and so can the list of recommended vaccines (leishmaniasis, for instance, mainly comes up in the south of France).

8 weeks

Around 8 weeks: the first round

The puppy gets the vaccines against distemper, infectious canine hepatitis and parvovirus; in France, leptospirosis is often added from that very first shot.

12 weeks

Around 12 weeks: the first booster

The puppy gets the same vaccines again as at 8 weeks (distemper, infectious canine hepatitis, parvovirus, and leptospirosis if it was started), just as the protection passed on by his mother begins to fade.

16 weeks

Around 16 weeks: the puppy's last booster

The puppy gets another booster of the same vaccines, plus the rabies one if you need it (travel planned, or a category 1 or 2 dog).

1 year

Around 1 year: the booster that follows the puppy round

This booster closes the puppy's course of vaccines and secures protection that then lasts several years.

How often adult dogs need boosters

Once the one-year booster is done, the rhythm depends on the nature of each vaccine, not on a single rule applied every year. The vaccines against distemper, hepatitis and parvovirus contain a weakened version of the virus: it trains the immune system without making the dog ill, and leaves protection lasting several years. In an adult dog, a booster every 3 years is enough: repeating it every year doesn't protect any better. The leptospirosis vaccine, by contrast, is made from killed bacteria: its protection runs out in about a year, hence an annual booster, the same as for kennel cough. For rabies, your vet gives the booster every 1 or 3 years, depending on the vaccine used and on what the law requires in the country you're travelling to.

A blood test can check whether your dog is still protected against the key viral diseases, by measuring his antibodies. If the level is high enough, there's no need to revaccinate him straight away. It's an option worth considering with your vet, especially for an older dog or one who has already reacted badly to a vaccine.

WSAVA Vaccination Guidelines Group — Guidelines for the Vaccination of Dogs and Cats (2024)
AVSAB — Position Statement on Puppy Socialization (2008)

Going further

guideWorms & worming: protecting your dogRegular worming completes the protection vaccines give: find the right rhythm for your dog.Read the guide guideTicks on dogs: prevention and removalTicks spread serious diseases too: learn to spot them and protect your dog.Read the guide guidePuppy socialisation (3 to 16 weeks)The question comes up all the time: can you take out a puppy who isn't fully vaccinated yet? This guide helps you balance safety and socialisation.Read the guide guideSpaying or neutering your dogAnother medical decision to plan ahead with your vet, often raised at these same check-up visits.Read the guide guideVet check-ups for your senior dogVeterinary care changes with age: see what's different once your dog is a senior.Read the guide guideFever, coughing, low energy, loss of appetite: what to look for and when to call the vetFever, a cough, heavy tiredness after a booster, or illness despite vaccination: know when to worry.Read the guide parcoursPuppy first stepsLay the right foundations from the day your puppy arrives.View the path parcoursHealth & preventionThe appointments that protect your dog year after year.View the path

Frequently asked questions

When should you worm your dog?

A puppy is wormed often during his first months, then, in an adult dog, the rhythm depends on his lifestyle and is decided with your vet. Since some worms also pass to humans, it's a health matter for the whole family. Ask your vet for a rhythm suited to your dog rather than picking a schedule at random.

How long does a dog's vaccine booster take?

The booster itself is a single appointment. The rhythm varies: a booster one year after the puppy round, then an interval of one to three years depending on the vaccine. Your vet sets the dates in the health record.

How much does a dog vaccine cost?

There's no official price: in France, vets set their own fees, and they vary from clinic to clinic and region to region. The price almost always includes the consultation with a full examination, not just the injection. The simplest thing is to ask for a quote itemising the product, the consultation and any extra procedures.

At what age should a dog be microchipped?

Microchipping is compulsory in France before the age of 4 months, and before any sale or gift. It's carried out by a vet and recorded in the national identification database, I-CAD. For travel abroad, the chip must be fitted before the rabies vaccine, otherwise the passport isn't valid.

Does a dog need vaccinating every year?

Not everything, every year. The essential vaccines against distemper, hepatitis and parvovirus need a booster every 3 years in an adult dog, while leptospirosis and kennel cough, whose immunity is short-lived, need one every year. A blood test can even check whether the protection is still there before revaccinating: talk it over with your vet.

Is the rabies vaccine compulsory in France?

Not for every dog: rabies is only compulsory in specific cases, for travel abroad, for category 1 or 2 dogs, and in the départements of French Guiana and Mayotte. Mainland France has been free of terrestrial rabies since 2001, and the real risk today comes from unvaccinated dogs brought in illegally. Outside those cases the vaccine isn't compulsory, but your vet may still recommend it depending on your lifestyle.

Can you take a puppy out before his vaccines are finished?

Yes, and it's even recommended: your puppy goes through his socialisation window while he's being vaccinated, not after. Most of it plays out between 3 and 12 weeks, so those weeks are gone before his course of vaccines ends: waiting means losing them. Let him meet other healthy, vaccinated dogs, in clean places, while steering clear of busy parks. American veterinary behaviourists (the AVSAB) recommend exactly that: starting at least 7 days after the first vaccine and a first worming, without waiting for the whole course to finish.

Updated on July 11, 2026Sources

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