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My dog had parvo, vaccinated. Will she get re-infected by sick dog?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | unspayed | 2 years old

My dog Hazel is two years old. When she was six months old, she had parvo infection and survived it. She got vaccinated against it after that but we did not follow up. Now, my other dog Bolt at home is showing signs of parvo virus infection. Will Hazel get infected? I'll attach the photo of vaccination Hazel had received in 2017!

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1 Answer

Most Helpful Answer

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Answered By Rodrigo Roca, DVM

Veterinarian

Published on January 15th, 2019

Hello, thank you for your question about Hazel. If Hazel has been previously infected and then vaccinated the chance that she could experience a re-infection is very unlikely as she should now have good immunity against this virus. I would recommend keeping Bolt and Hazel separated though while Bolt is sick with parvovirus. Parvovirus makes dogs predisposed to developing other significant infections. Hope this helps, good luck!

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