‘Immunity Passports’ Could Create a New Category of Privilege

Proof of a prior infection could come with more freedom

A new type of test uses a small blood sample to look for the presence of coronavirus antibodies. Photo: SOPA Images/Getty Images

In one version of the future, a new type of test that measures antibodies would help restore a sense of normalcy for some people even as the coronavirus pandemic drags on. With the right antibodies, some may be immune to the virus, unable to get sick or spread the…