a cold? no. I'd never be open this year! Even ear infections, I don't anymore, since the ear infection itself isn't contagious, but the cold before was, which we're usually passed by the time the ear infection comes. I close for flus (gastros), bronchitis, just before Christmas it was strep throat with scarlet fever...those type of things. Depends of course on the contagiousness and my ability to take care of my sickie and all the others. I also give the parents the choice sometimes....since some are at home or have easy access to grandparents. If they're not comfortable, I give them the choice to find care elsewhere and don't charge, since it's not their fault. But a cold is inevitable and all kids will be around it at some point.