First of all, I've been following this thread, but have had no suggestions, only prayers for healing. I have never had more than one cat at a time, so my experience is very limited. I'm sorry you're having this issue. Second...
Quote Originally Posted by columbine View Post
I did a search and found this article about FCV. It sounds like it might be a possibility.

Love, Columbine
Thank you for this link! It's pertinent here, and I also think it's the same virus my Pinot had when very young that she is a "carrier" of. I never knew the name, but this sounds like it. I have been warned by three vets NEVER to have another kitty with her.

If this is the same disease, I feel your pain, it's excruciating to watch a kitty deal with this. In our case, she was hospitalized for 12 hours when she became critical, given IV fluids, appetite stimulant and antibiotics with an eye ointment as well. All but the fluids were sent with her for home treatment. If the same disease, the cyclical nature makes sense since you have a number of kitties; mine got it at the shelter. I would definitely ask the vet about this possibility and how to quarantine.

Prayers and {{{hugs}}} - kisses to the kitties.

Maggie