COVID ‘Immunity Passport’ No More Reliable Than a Coin Flip

This transcript has been edited for clarity.

May well 27, 2020 — Welcome to Impression Issue, your weekly dose of commentary on a new health care research. I am Dr F. Perry Wilson at the Yale University of Medicine.

This week, my Twitter feed is filling up with speak about antibody tests.

Would not it be wonderful to have a very simple blood exam and know that you are immune to the coronavirus? How liberating would it be to wander into the grocery retail store with your encounter mask—which you are carrying out of sheer politeness—hiding a self-contented grin. For

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