I'm sorry to hear of your fur babies being sick.

For the kitty, you may want to warm the food just a bit so it has stronger smell. If the cat smells the food, the cat will more likely to eat. If it can't smell or doesn't smell the food, then its less appealing to them and less likely to eat. Sometimes, we heat up Gerber baby food. 10-15 second in microwave just warm to the touch. Purried chicken then turkey.

Healing thoughts for your furbabies.
Smilingcat