Because all these tests have false positives and negatives. That’s basic clinical science.
So if you are an employer, are you going to let a valued business exec go overseas where you might lose him/her for weeks of quarantine when he isn’t even sick? Or just tell him/her to zoom it?
Do you as a parent want to take your kids on a vacation, knowing that if any family member has a false positive (or, for that matter, a TRUE positive) they will be refused readmission back to their own country?
I realize some airlines are desperate for the return of international and business flying, but this seems an unlikely way to get it. In fact, it seems like it will be highly counterproductive to that goal.
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