Yikes! Hopefully they (and you) won't get it. I guess now all you can do is prepare, get the Pedialyte (or equivalent) ready, ginger ale, etc. But hopefully you won't need it! I'm amazed that sometimes will get a bug and will swear I wonder where I get it, if I've been cooped up for awhile. And then sometimes a family member will have it and I won't get it. Weird.