Lack of certain antibodies would mean you don’t have an “immunity passport” and are therefore not allowed to venture out in public. Those who have them would be issued certificates to roam and restart economies — so the vulnerable can stay home.

If your blood pressure is too high, it can cause permanent damage to your heart, eyes, kidneys and brain. Would you know if you had high blood pressure?

I could give a variety of reasons not to contact any given previous employer, up to and including…