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My cat has fever, seizures, and won't eat. Will he make it?

Updated On September 23rd, 2025

My 4 year old male unvaccinated cat has haemobartonella felis, has been on a doxycycline course for 7 days now, without permanent noticeable improvement. Fever is recurring and thermometer gives different readings. Of late, swallowing is painful and has to be force fed, though he wants to have the food.Has rapid breathing. Had 2 minor seizures yesterday, for which he had phenobarbitone. No seizures since. Will he live? How long will the fever last? Had ivermectin poisoning before onset of fever.

1 Answer

Most Helpful Answer

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Answered By Mirissa Duncil, DVM

Veterinarian

Published on August 20th, 2017

Hi there. Due to the nature of your pet's illness and conccurrent illnesses-it sounds as if he may have a few things going on. If he was still suffering from residual effects from the ivermectin poisoning, it is likely the Bartonella is even harder on his small body. Depending on the age of your animal and the level of tissue damage from the illnesses (both of which we are unsure of here) it's is impossible to predict his likelihood of recovery or how long the seizures will last. Normally, I will tell you that seizures in this particular case is a relatively poor prognostic indicator. Any animal that had undergone so many issues in a short time should be hospitalized and on iv fluids if at all possible for treatment. My best to you both.

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