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Updated on September 23rd, 2025
Pet's info: Cat | Siberian | Male | neutered | 1 year and 1 month old | 11 lbs
Hi My cat white 1 year and 2 months ( Siberian wildcat ) was all perfect and two weeks ago I had him neutered. After one week from the operation he started vomiting and I took him to the doctor and he had a fever , she gave him med and took blood to test it . Next day he was still without food or water and vomiting! we went to check the results he had all normal but he had corona virus as high as 1:400 but no Fever and started drinking and eating small pieces of food,is FIP a possibility ?
2 Answers

Answered By Vanessa Yeager DVM MPH
Veterinarian
Published on September 12th, 2017
Answered By Maria DVM
Veterinarian
Published on November 12th, 2017
Many cats have Coronavirus. Once Coronavirus mutates into FIP (Feline infectious peritonitis) it is fatal and doesn't resolve.
You can have a positive Coronavirus but that does not mean Mia has FIP. I have also seen a negative Coronavirus test and a cat end up with FIP.
The only was to diagnose FIP is on necropsy.
If Mia is positive for Coronavirus, yes it can mutate under stressful situations at any point.
There are two different types of FIP. There is a dry form and a wet form. The dry form is difficult to diagnose since it typically presents as a high fever and a cat losing weight and not doing well. The wet form is easier to determine since they present with fluid in their abdomen and usually with liver disease. They also are icteric (have a yellow appearance to them).
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