Luckys4me.... sorry I cannot help you beyond telling you to take at least one kitty to the vet and have blood work done and chest xray to rule out things....but a vet would be more likely to help you through this. It could be a harmless cold/virus. Gabe and Graemer (I think both had the same thing...) had a bacterial infection which is much different than a virus!

Take those kitties to the VET asap!

SAS