my friend's cat passed away today after a big fight with calici virus which causes drooling, ulcers, sneezing etc. The cat would not eat and drink so I tried to help out with critical care canned food blended and water at the intervals the vet suggested. When I found the kitty she was so dehydrated that her scruff was sticking up and she would barely stand. She was 4lbs when she was ideally supposed to be at 8. I was wanting to work another miracle but I think the cat was too far gone to save to begin with. Unfortunately they did not have the financial means for intravenous fluids which I suggested as a final ditch effort. I remember the vet saying that subcutaneous fluids would not absorb most of the one in a severe case so I think that is why our hydration attempts were not working. I have saved many cats that have had uri, sometimes staying up all night to save them using the method I used, so I am so upset I failed my friend and this cat. It will take me a while to get over losing this one since it was more personal...and hope he forgives me.