Hey Kitty! That's an awful situation to be in. Personally, if I felt that I would spend the whole time at the party feeling anxious and then continue to worry for the next few days that I might have caught something then I wouldn't go. If you don't think you would be able to enjoy yourself is it worth going? I'm not entirely sure how long germs can live on surfaces for, although I'm sure they would have cleaned any infected areas...but then again Tuesday wasn't that long ago :S sorry if I'm not being helpful, I'm just saying what I'd be thinking if it was me