On July 30, Ontario’s CMOH Dr. Barbara Yaffe told the media:

"if you are testing in a population that doesn't have very much COVID, you’ll get false-positives almost half the time. That is, the person actually doesn't have COVID, they have something else, they may have nothing.” pic.twitter.com/siByfpRI3p

— Westphalian Times (@WestphalianNews) September 25, 2020