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My new cat has flu. Can I vaccinate him and protect my other cat?

Updated On September 23rd, 2025

Pet's info: Cat | Persian | Female | unspayed | 1 year and 2 months old | 6 lbs

i have new cat 'Sifu' but he is unvaccinated and have cat flu, already visit vet and is in recovery, i have another cat 'Panda' and she is healthy & vaccinated. Panda used to live in my room but since Sifu come i took her to another room because i want Sifu to recover first, if Sifu is infected for life, can Sifu's flu be cured and can i vaccine him even if he already have the virus? can Panda get back to my room with the virus here because of Sifu? or maybe i should get rid of Sifu? i am scared

1 Answer

Most Helpful Answer

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Answered By Sara Farmer, DVM

Veterinarian

Published on February 16th, 2019

1. Yes, Sifu can and should be vaccinated since the vaccine for the cat respiratory viruses (herpes and caliciviruses) also covers the panleukopenia virus. While some cats will continue to have intermittent symptoms of respiratory viruses others do not so it’s possible that Sifu will completely ‘recover’. 2. Routine cleaning should eliminate the virus from your room, so it should be okay to move Panda back. Cats can continue to shed virus even after their clinical signs are gone so I typically recommend waiting at least two weeks after clinical signs are gone to introduce Sifu and Panda. You should consider getting Panda vaccinated as well.

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