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My cat had FPV, now has diarrhea & vomiting. Is FPV causing this?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | unneutered | 4 lbs

Help. My cat was diagnosed with feline panleukopenia virus on 4/10/17 but has been showing symptoms since 2/10/17 therefore it's 10 days already. His symptoms were vomitting, anorexia and dehydration. On 6/10 until today he was eating normal but this morning I saw him threwing up hairball and there was diarrhea. But he eats like normal, although i change his diet. Shud I be alarmed that FPV is causing this? Because Drs says if he survives after 7 days, his body develop immunity towards It

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on October 10th, 2017

If Mochi truly had Panleukopenia Virus this spring, then it is extremely unlikely he would ever get it again. However, that doesn't mean he couldn't get some other virus or bacteria that could cause vomiting and diarrhea. If you changed his diet before the vomiting and diarrhea started, then it may be the food switch. You may have changed foods too suddenly and caused an upset stomach, or Mochi may have a dietary intolerance of food allergy to the new food. Other possible causes for diarrhea and vomiting include stress colitis, IBD, GI blockage, intestinal parasites, among a few other things. If the vomiting and diarrhea persist for longer than 24 hours, or if Mochi develops a poor appetite or lethargy, then he should be evaluated by a veterinarian.

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