My daughter had the sv almost 2 weeks ago now. My other daughter caught it one week ago, and stopped v'ing last wednesday at 7am. I haven't caught it, and I've been doing A LOT of cleaning of surfaces, etc. I am still washing my hands like crazy before I eat, and making sure I don't put my hands near my mouth otherwise. How long do I have to keep being super careful? It has been a week now since anyone v'd. I know they can live on surfaces for up to 2 weeks, but how good are the odds at this point that I'm going to catch it off a surface?