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Does my dog need a Lepto booster shot three weeks after the first?

Updated On September 23rd, 2025

Pet's info: Dog | Chow Chow | Male | neutered | 2 years and 3 months old | 65 lbs

I get only one Lepto shot a year hearing they need a booster in three weeks. Is this true

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on July 16th, 2018

The first time a pet receives the Lepto vaccination they should get the initial vaccine and then a booster 3 weeks later. After that, then they just get one yearly booster. If the pet received the initial vaccine but did not get the booster 3 weeks later, then essentially you should start over with two vaccines three weeks apart. Hope this clarifies. If not, please feel free to post again.

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