Who else has dealt with FUO? Fever of Unkown Origin?

and if so, for how long?

Stephanie

A PERSISTENT Fever of Unknown Origin in cats under one year of age is often due to FIP, unfortunately.  Certainly older cats can develop FIP, but most often its the youngsters, and most often that's the first sign.  The only other fever I've dealt with consistently is the one that accompanies the "limping calici" virus infection, and that is short-lived but can be dramatic, like 105.  However within a few days the classic lameness and pain in the joints is evident.

I do not know what FIP means?

Th site moderator took down my other post describing what Bronx has been through.

Pretty much in a nutshell, Bronx started acting lethargic two weeks ago. I took him into the doctors and his temp was 105 the doctor gave him some anabiotic By mouth and I took him home and continued the medicine. I took him back the next day and for three days after that so that the doctor could take his temperature and make sure that it was going down. On Friday his fever finally broke, by then he was no longer on liquar oral antibiotic he was taking pills because he would not take liquid.

He was better for one day then got lethargic again. On Sunday he was burning up, 1st thing Monday morning he went back to vet an this time he was at 106 and the Vet admitted him immediatly, and kept him for 3 days. His fever finally broke and the doctor wanted him him to see If he would eat and drink at home. He came home and now (since Wednesday) he is doing well.

He was tested for everthing and nothing popped up. The only thing was low white blood cells. No leukemia, no Aids...

I hope he stays well

It's probably not FIP because that's usually a low-grade fever, not a scary high one.  There is no test for FIP and we won't even go into that as yours doesn't sound like it at this point.   This one does sound like the fevers associated with the calici virus, and that can depress the white cell count (any virus can).  It's very encouraging that he's been doing well again since Wednesday.  Keep us posted!

He seems to be back to Normal except he is very jumpy and very lovey. Does that make sense?
Bronx has always been a sweet guy but now it's over board and everything makes him jump. Hopefully this will wear odd even though it is pretty comical at times.

Hopefully the jumpiness will subside in a few days.  It sounds similar to the state they are in after surgery, as a reaction to the anesthesia, and often they are both jumpy and extra affectionate and clingy for about 24-48 hours.  His fever was high enough to put him into an altered state of consciousness (one degree higher and he could have had brain damage, so good thing you got him to the vet right away both times!)  Since white blood cells were lowered rather than increased, it's pretty safe to assume the cause was not bacterial infection, but possibly viral.  Hopefully now he has immunity to whatever it was and will not get it again.  If it is viral, he could become a carrier and be able to pass it to another cat or kitten if you should get one in the future.  I'm only mentioning this so you will be aware in the future in case you do get another cat or kitten and it also develops a mysterious high fever.  Let's hope Bronx continues to do well and this whole episode becomes a distant memory.  We're so glad you went to the vet right away.

Thank you so much for your reply. Talking to other cat lovers really helps, I feel silly sometimes with the way I love my pets but they are family. I guess you either are a cat lover or your not--I am so glad I definitely am! I also love my lab puppy.  So thank you and everyone again for talking this out with me.

Is it common for cats to get viral infections?  

I do have another cat and my vet wanted me to try to keep them separate but it just wasn't working.  He was only happy when she was around!  They are litter mates.

Do you think that I should have his blood rechecked to make sure its not leukemia?

Stephanie (-:

The only reason to re-check a negative leukemia test is if the cat has been exposed to leukemia virus  (i.e. if it goes out or else lives in a house with a leukemia positive cat), OR if the test was done when the cat was under 3months old because SOMETIMES tests on young kittens are not accurate. 

Yes, it is common for cats to get viral infections when exposed to other cats AND that nasty little calicivirus spreads well on OBJECTS without any direct exposure to other cats.  It can ride in on your shoes, or on something you got somewhere else, or on a piece of discarded trash that came from an area where there were infected cats.   The leukemia virus, on the other hand, does NOT spread easily.  Cats usually have to share bodily fluids with other cats or even get bitten by another cat in order to get it.  It does not travel on objects in general like calici does.  Although all current cat combo vaccines DO include the calici virus in their formula, it's a virus that has many varieties and mutates frequently, so like the human flu virus, what goes around as illness from year to year is often different from what went around the year before.  Also, if a cat has immunity to ONE strain of calici, it doesn't necessarily carry any immunity to another strain of it.