Almost Half of COVID-19 Tests Give False Positives? Say What?

Ontario's Associate Medical Officer of Health, Dr. Barbara Yaffe in a COVID-19 press conference on July 30, 2020 spills the beans when she admits that nearly half of the COVID-19 positives are false positives. Dr. Yaffe said "You'll get false positives almost half of the time. That is the person doesn't have COVID. They have something else. They may have nothing".

Say what? Excuse me? So people with the common cold or nothing at all are told they have COVID and have to quarantine? They're using this "data" to shut down our lives?