Quoting Maria + Cory = Alexis:" I woke up last night around 3 am feeling horrible. I knew I had caught that nasty stomach bug that my ... [snip!] ... take to make sure she doesn't get sick? If she does get sick what can I do to help her ? Any advice would be helpful. Thanks"
You were probably touching the other kids and their things a lot more than your baby. If she is BF, I have heard that can help with her immunity to those sorts of things too.
Most important thing to do is wash your hands a ton, keep everything sanitized and try not to get anybody else sick! If she does get it, you would have to take her in to the hospital probably because it could be really horrible for a little thing like her.