You can catch a cold virus any time you go anywhere. Since she was sick, I'd gather that the family was extra careful as I am when I have a sick kid. I wipe stuff down that is commomly used. 15 minutes in a house with a child with a cold is probably not a high alert moment. lol A day care center? Put on a mask. But I swear, the two times I've been sick recently was from trips to stores where I forgot to use wipes on the handle of the cart. Wash your hands frequently and always hope for the best. good luck