Adam Maida / The Atlantic / Getty
If you have been fortunate enough to receive a COVID-19 vaccine, you also possess an essential, high-tech tool for proving your immunity to others.
Just kidding, it’s a piece of cardstock. On the flimsy rectangle that all Americans get with their shots, doctors and pharmacists record dates of administration, vaccine type, and lot number. Some scrawl the information by hand with a pen; others apply a preprinted sticker. The cards offer no special marker to prove their authenticity, no scannable code to connect to a digital record. At three by four inches, they’re even too awkwardly sized to fit in a wallet. A mid-century polio-vaccine card doesn’t look too different from today’s COVID-19 vaccination records.
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