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My cat has flu. How long do symptoms last and when should I worry?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 1 year and 1 month old | 11 lbs

Can a cat flu cause illness for 3-4 weeks?

1 Answer

Most Helpful Answer

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Answered By Dr Stafford, BVetMed, MRCVS

Veterinarian

Published on July 4th, 2017

Because it is a virus it can stay in the system for a long time and come and go. Depending on the immune system and strain of flu it could hang around for a few months. It may be worth having a feline aids test done if it doesn't get better soon in case Bubba has a compromised immune system.

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