Registered Nurse Shyun Lin, left, administers Alda Maxis, 70, the first dose of the COVID-19 vaccine at a pop-up vaccination site in the William Reid Apartments in Brooklyn, N.Y., on Jan. 23.
Mary Altaffer/AP
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Mary Altaffer/AP

Registered Nurse Shyun Lin, left, administers Alda Maxis, 70, the first dose of the COVID-19 vaccine at a pop-up vaccination site in the William Reid Apartments in Brooklyn, N.Y., on Jan. 23.
Mary Altaffer/AP
Slightly more than 6% of American adults have received…

