but , because one cannot tel if someone is infected........one must then stay away from all people. IF the app can identify folks with the virus that came into range of one.......it is one more tool in a tool kit.Wouldn't it be a hell of a lot less complicated to stay away from people who might be infected. It's worked well for me, so far!
Everything is trial and error at the moment...... due to the unknowns.... But we have gained a lot of knowledge in a short time about this culprit virus.
Some cannot go into indefinite seclusion ........