Q please check subway vents in cities, I think that is how they are spreading covid, this is why children hardly ever get it, not many children in the city. The smell is not stagnant steam but of chemicals, foul, and yet sweetish like a Novocaine. I got an sneeze itch immediately and runny nose, never had one for 30 years. This steam helps it to get air borne. Take samples. These people are evil.