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 June 7, 2021
by · Published June 11, 2021
by · Published May 5, 2021