Ten days ago from the horse’s mouth:
Should people who aren’t sick be tested for Covid-19? In August the Centers for Disease and Control Prevention revised its guidance to suggest focusing on the elderly and patients with symptoms. One may be excused for thinking that more testing is always better, but that isn’t true. Anyone can be infected with the virus, but there is a thousandfold difference in the risk of death between the young and the old. Testing strategy should reflect that.
A diller and dollar, if not every day then rather often, Science changes her mind, or at least her “settled” focus. Ain’t she grand?
Blithe Spirit 