My point is that exposure to cold temperatures suppresses the immune system, so the opportunities for viral infection increase. On top of that I use immune system suppressant for my condition from time to time when is over active, so it make it even worse.My point was that opening a window to cold air is not the source of the cold virus. Your husband may be carrying it but not sickened by it, and he just passed it on to you.
Dana
Cold viruses can be dorment staying in your body inactive , and can activate itself in situations like that, or be triggered by a live virus from another person, viruses love cold temperatures and low humidity, where bacteria warm and humid.
And that is what I trying to explain to you.