Kim, All cats are vulnerable to "airborne" diseases. If the URI is bothering you, I generally have a sick cat at least once every two months. If it isn't URI it is something else. Whenever you have a multi-cat household, these things are bound to happen. Especially during this time of year, URI and eye infections are common. Don't quit doing what you are doing. Get some rest, and enjoy your life once in a while. Go outside and enjoy the spring. Take a day off, when you are able. Is there another person whom you can turn the kitties over to for a day or two, without taking them out of your house? You are doing a great, and much needed service. Please do not stop.


.....................wayne