I saw a recent study of an Italian town where they exhaustively tested everyone. It was something like 40% got it but had no symptoms. The main means of trans

I saw a recent study of an Italian town where they exhaustively tested everyone. It was something like 40% got it but had no symptoms. The main means of transmission appears to be when people are talking, coughing, sneezing. If someone is talking without a mask on, they are spraying droplets everywhere. If they have a mask on, then the risk is much lower. If you have a mask on, too, then it is even lower. In Singapore, medical personnel had excellent success by wearing surgical masks at all times, and wearing N95 masks only when performing procedures where lots of droplets were expected, such as extubating a patient.