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My 5-month shih tzu puppy only had 2 shots. Is a third needed?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Female | unspayed | 5 months and 1 day old | 7 lbs

Just adopted a a 5montb old shih tzu. The prev owner only got 2 sets of shots how important is the 3rd set ?

2 Answers

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on July 9th, 2018

It is important to finish your pets vaccinations and most pets have to get 3 sets, depending on when the vaccinations were started and stopped. Typically vaccines are stopped between 14-16 weeks, of age, but again it depends on the sequence of vaccinations received. I would recommend that you repost with the exact vaccine dates,if given by a vet or not (breeder vaccinations should almost always be repeated b/c there is no guarantee they were done properly), and your pets actual birthdate. With this added information we can let you know for a certainty if Rosie is completely finished with her puppy rounds or if she needs additional immunizations. Thank you and take care!

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    Answered By Susan England-Foster

    Veterinarian

    Published on September 17th, 2017

    It is very important that puppy vaccine are given every 3-4 weeks until they are 16 weeks of age. The vaccines must be boostered to work properly. If you took her on 11/8- I am assuming you meant 2016 Rosie should start the vaccine series over again because the gap is to large for proper protection. At this age she will need 1 set of vaccines and another in 3-4 weeks and should be fully vaccinated. However the united kingdom might do things a little differently than the United states. hope that helps

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