We had suspected Chlamydia years ago - if it is that, a long course of oxytetracycline clears it up, eventually. These days we vaccinate against it but when we first wanted to do that the vet said they didn't even stock it and would have to order it in - and this is a large practice too.

The problem is that the cat flu vaccine is actually far less effective than the human flu vaccine. The virus mutates but the vaccines don't get updated. We all keep vaccinating because 1. the GCCF require it and 2. The vaccine is "packaged" with the FIE vaccine and that DOES work. I've had a show rejection before with a kitten with calicivirus and that was of course a vaccinated kitten (fortunately calicivirus isn't at all serious, it's the other cat flu, FVR, that is)

The lack of registration numbers does rather suggest an unregistered cat I'm afraid. If you intend to breed, you're going to be well advised to start again. If you bring any more kittens in, make sure you only buy kittens that are vaccinated against Clamydia because as long as it isn't cleared up you will risk giving it to the new kitten.

Liz