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Is Parvo a risk for adult dogs? How long do infected dogs live?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Female | unspayed | 79 lbs

(Sorry for my bad English) My 3 years old dog is dead. Because she infected Parvo virus. I want to ask you "can a parvo virus infect adult dog?" And "how long adult dog can survive when adult dog infected parvo virus"

1 Answer

Most Helpful Answer

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Answered By David Darvishian

Veterinarian

Published on December 20th, 2017

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear about Ttorri. Parvovirus can infect an adult dog if they are not vaccinated against it or the vaccines were not effective enough to allow protection against the virus. Also, immune system problems in an adult dog or an immunocompromised adult dog could allow an infection like this to take hold. Parvoviruses vary widely in their strength or virulence so it's impossible to know how long an adult dog could survive. Some strains of the virus are very deadly and can cause death very rapidly. Again, so sorry for your loss. I wish you good luck. One last note- Parvo can last in the environment for months so I would be very cautious if getting another dog. You should clean and disinfect what you can in your home to eliminate the virus. Bleach and water is a good disinfectant. Bleach 1 part to Water 30 parts (very dilute) is enough to kill parvo.

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