i see everyone on here say "it only is contagious after someone has v*ed and it is in their saliva" but others say to me "its contagious through the air and on surfaces even before their sick when they have the germ". i'd really like some clarification! i always get out of the house when someone catches it in here, but what about playing/sharing food/touching before they even v*? someone please give me your expertise lol