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My cat died from FIP. My other cat has loose stool. Is she at risk?

Updated On September 23rd, 2025

We recently lost a cat due to FIP. We adopted Theo (6 months old) 6 months ago. His health records indicate past loose stool and respiratory infections, resistant to antibiotics. To make a long story short we ended up putting Theo down with progressed wet FIP last week Meika, our 6 year old cat, shared food/water dishes and a litter box with Theo They played and cleaned each other. She is healthy but had loose stool a few times recently Am I being paranoid? What are her chances?

1 Answer

Most Helpful Answer

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Answered By Penelope Graben, DVM

Veterinarian

Published on July 13th, 2018

I'm so sorry to hear about Theo's battle with FIP. That is, by far, one of the most heartbreaking diseases to diagnose in this field. Most cats are exposed to the coronavirus that causes it, but only an unlucky few convert the virus to FIP. As far as we know, this is based on a genetic predisposition and has nothing to do with exposure from the environment or other cats. If Meika is having loose stool, I would recommend having her seen by a vet. It is much more likely to be due to a common problem, such as a minor parasitic infection or stress colitis from grieving her playmate. They will likely recommend a bland diet, probiotics, or a short course of anti-diarrheal antibiotics if her only symptom is mild loose stool. I cannot say that FIP is impossible, but it would be very low on my list of concerns. I hope this is helpful and gives you some peace of mind. Thanks for using Petco Pet Education Center, formerly Petcoach!

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