Last summer my Mahopac monsters had a URI outbreak and wouldn''t eat. I was able to get them to eat plain chicken or turkey baby food. A cat won't eat what she can't smell. A little dab on the nose got them to lick it off, then they could taste it. Once they'd eat plain baby food, I'd spike it into their regular kitten food.

Sick tiny kittens are so scary! But it sounds like you're doing OK. Good luck.