Tweaked COVID vaccines in testing aim to fend off variants
Dozens of Americans are rolling up their sleeves for a third dose of COVID-19 vaccine—this time, shots tweaked to guard against a worrisome mutated version of the virus.
by ·
Dozens of Americans are rolling up their sleeves for a third dose of COVID-19 vaccine—this time, shots tweaked to guard against a worrisome mutated version of the virus.
by · Published May 19, 2021
by · Published June 10, 2021
by · Published April 13, 2021