Thanks everyone! Valium and whiskey sounds like the best advice!

Secluding is next to impossible since we are up to about 30 cats now. I have a heater going in the garage area and are keeping the ones that are sneezing in this area. Unfortunatley there are those that want nothing to do with coming indoors so they will be at risk getting it. Plus these are the most feral ones so medicating and getting them to the vet will be a challenge.

We'll get over it, but I do not have any idea where they even contracted it. The newest bunch (Sable, Gable, and Garbo) were secluded for weeks and when exposed to the others had no signs of sickness. The only thing I can think of is it is airborn and we have those that come and go from the cat run/garage to the indoors. UGH...what fun.