Bear with me, please, folks, because I am getting confused - not hard, I know. Surely the test has two possible outcomes. Positive for the virus, or negative for the virus. If you are clear of the virus at the time of the test, it doesn’t mean that you can’t contract it subsequently, and as far as I can see that is all. To issue CLEAN armbands to those who did not test positive simply isn’t on. It is no guarantee that they won’t contract it in the future, almost certainly being unaware of the fact during the incubation period, thus representing a grave threat. Yes/no?
Mike