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My cat has a virus, vomiting, fever, and won't eat. What's wrong?

Updated On September 23rd, 2025

Pet's info: Cat | Scottish Fold | Female | 5 months and 9 days old | 4 lbs

Hello, my cat is sick. She is throwing up and she have a fever . She is not eat food . and I took veterian than they said to me '' she has a virus . We don't know about the virus .'' They did test hematology and I do not about test what's the meaning .Please help me ? What's wrong my cat ?

1 Answer

Most Helpful Answer

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Answered By Ann Dion, DVM

Veterinarian

Published on June 11th, 2018

Hello and welcome to Petco Pet Education Center, formerly Petcoach. I am sorry that Mia isn't feeling well. Hematology is a test that checks for white cells (disease fighting cells) and red cells (oxygen carrying cells). If these values were fairly normal, or slightly off, then it can be suggestive of a virus. If the values are very far off it is more likely a bacterial infection is present. Viruses can make cats have fevers, and when cats have fevers they often won't eat. Often we don't figure out exactly what virus it is, but just treat supportively. Viruses can affect many different systems, including the gut, which can cause vomiting. I suspect your vet thinks your cat has a gut virus and that is causing the vomiting and not eating. They likely gave some medications or injections to help bring the fever down and stop the vomiting. Other causes could be obstructions (blockages in the gut), or severe gastritis (inflammed gut). If Mia isn't better soon (next 12-24 hours) or if she is still vomiting, then I would recommend bringing her back to the vet for x-rays to see if surgery is required. Best of luck with Mia.

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