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SESK: Stuff Everyone Should Know · sesk.info/dog-puppy-last-booster

A puppy's final core booster should be given no sooner than what age?

16 weeks of age or older.

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  1. 10 weeks
  2. 16 weeks ✔
  3. 6 months

Why: Antibodies from the mother can block early shots, so the last dose in the series is timed after the puppy is about 16 weeks old.

Huh, didn't know that: UC Davis says the core puppy shots protect against parvovirus, distemper and adenovirus.

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What did the mama dog say to the puppy who would not stop asking for treats? Quit hounding me.
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References

Answer: 16 weeks. Antibodies from the mother can block early shots, so the last dose in the series is timed after the puppy is about 16 weeks old.

  1. UC Davis, Vaccination Guidelines for Dogs and Cats healthtopics.vetmed.ucdavis.edu/health-topics/feline/vaccination-guidelines-dogs-and-cats
    with the final vaccine in the series being given no earlier than 16 weeks of age
    Checked 2026-10-11.
  2. AVMA, Vaccinations for your pet's health www.avma.org/resources-tools/pet-owners/petcare/vaccinations
    the final vaccination in the series is given at 16 weeks of age or older
    Checked 2026-10-11.
  3. UC Davis, Vaccination Guidelines for Dogs and Cats healthtopics.vetmed.ucdavis.edu/health-topics/feline/vaccination-guidelines-dogs-and-cats
    one dose of vaccine containing modified live virus (MLV) CPV, CDV, and CAV-2 is recommended every 3-4 weeks
    Checked 2026-10-11.

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