Free Air

They say that the air is free. This is true,in the sense that you do not have to work or pay anything in order to breathe.

However, the air is free for the virus which brings covid19 as well. Unfortunately, we cannot do anything about this. Humans can regulate or tax other humans to make them change their behaviour. This do not help against viruses. Regulations or taxes would not stop viruses, they do not understand or care. What viruses may care about, is antibodies in the blood of people, through infection or vaccines. I hope vaccines may soon be here.