Quick Answer:Puppies should start vaccinations at 6–8 weeks and complete their core vaccine series by 14–16 weeks. Core shots include DHPP and rabies, while additional vaccines like bordetella, leptospirosis, or Lyme depend on your puppy’s lifestyle and local disease risk.
Vaccination is one of the most important steps in your puppy’s first year. A strong vaccine schedule protects against highly contagious and potentially fatal diseases while helping your puppy build lasting immunity.
Why puppy vaccinations are essential
Young puppies have weak immune systems and often still carry maternal antibodies. Vaccines stimulate the immune response and gradually replace those maternal defenses, giving your puppy protection when it matters most.
Standard puppy vaccine timeline
Most veterinarians recommend a series of three core vaccine visits completed by 14–16 weeks. Each visit strengthens your puppy’s immunity as they grow.
Age
Vaccines
Reason
6–8 weeks
DHPP
First protection against distemper, hepatitis, parvovirus, and parainfluenza.
10–12 weeks
DHPP booster, optional bordetella/leptospirosis
Builds stronger immunity before socialization begins.
14–16 weeks
Final DHPP booster, rabies, other risk-based vaccines
Completes the puppy series and prepares for adult boosters.
How maternal antibodies affect vaccine timing
Puppies receive protective antibodies from their mother through colostrum, but those same antibodies can also block vaccines. That is why veterinarians space the vaccine series over several weeks—so the puppy’s immune system can respond as maternal protection fades.
Maternal antibodies are strongest in the first weeks of life.
Vaccines given too early may be less effective if those antibodies are still present.
A series of boosters helps ensure your puppy is protected once maternal immunity is gone.
Example puppy shot schedule
Here is a practical example of how a three-visit puppy vaccine series often looks in real life.
Visit
Age
What happens
1st visit
6–8 weeks
First DHPP dose, exam, weight check, parasite screening.
2nd visit
10–12 weeks
Second DHPP, optional bordetella/lepto, habits review, socialization guidance.
3rd visit
14–16 weeks
Final puppy DHPP, rabies, and any risk-based vaccines.
Preparing your puppy for the vaccine visit
A calm puppy makes vaccination easier. Prepare by keeping the appointment positive and making sure your puppy is well-rested and hydrated.
Bring a leash and a favorite toy or blanket.
Keep the trip to the clinic calm and low-stress.
Ask the vet how long to wait before feeding if your puppy is nervous.
When to delay vaccines
Vaccines should be postponed if your puppy is sick. A mild cold may still allow vaccination, but moderate to severe illness means waiting until recovery.
Postpone if the puppy has a fever.
Delay if your puppy is vomiting or has diarrhea.
Always follow your veterinarian’s guidance if your puppy feels unusually weak.
Core vaccines every puppy needs
DHPP: Protects against distemper, hepatitis, parvovirus, and parainfluenza.
Rabies: Required by law in many areas and critical for public safety.
Additional vaccines to consider
Non-core vaccines are based on your puppy’s lifestyle and local risk factors.
Bordetella: Recommended for dogs that attend daycare, training classes, or boarding facilities.
Leptospirosis: Suggested if your puppy may drink standing water or spend time outdoors in rural areas.
Lyme disease: Helpful in tick-prone regions.
What to expect at a vaccine appointment
Your veterinarian will perform a physical exam, check your puppy’s weight, and discuss diet, behavior, and preventive care. The exam also ensures your puppy is healthy enough to receive the next vaccine.
Common vaccine side effects
Mild reactions are normal and usually resolve within a day or two.
Soreness at the injection site
Low-grade fever
Temporary tiredness or reduced appetite
Serious symptoms such as facial swelling, difficulty breathing, or repeated vomiting require immediate veterinary care.
Protecting your puppy between shots
Avoid dog parks, grooming salons, and other high-risk places until the series is complete.
Keep distance from unknown dogs that may be unvaccinated.
Follow parasite prevention recommendations for fleas, ticks, and worms.
What comes after the puppy series?
After the puppy vaccination series, adult boosters help maintain protection. Most dogs receive DHPP boosters every 1 to 3 years, while rabies boosters depend on local law and vet guidance.
Puppy health checklist for the first year
Use this checklist to track your puppy’s vaccines, checkups, and preventive care through the first year.
6–8 weeks: first DHPP vaccine
10–12 weeks: second DHPP booster and lifestyle-based vaccines
14–16 weeks: final puppy booster and rabies shot
6 months: wellness exam and growth check
9 months: dental check and behavioral review
12 months: annual booster and full health assessment
Tip: Keep a clear vaccination record and bring it to every veterinary appointment. It helps your vet keep the schedule on track and avoid unnecessary repeats.
What to do if your puppy misses a vaccine visit
Life happens. If you miss a scheduled puppy vaccine visit, contact your veterinarian as soon as possible to reschedule and keep your puppy’s protection on track.
Discuss whether a missed dose needs to be repeated or simply continued at the next visit.
Ask your vet how to reduce the period your puppy is partially protected.
Avoid high-risk environments until the series is complete.
Right after a vaccine: what to watch for
Most puppies are fine after vaccines, but these warning signs need quick veterinary attention.
Persistent vomiting or diarrhea after vaccination
Hard swelling or lumps at the injection site
Difficulty breathing or collapse
Refusal to drink water for more than a day
Useful puppy health calculators
These tools help you track growth, feeding, and hydration while you manage your puppy’s vaccine schedule.
Dog Age Calculator — compare puppy age to human years and monitor development.