Covid19
Opinion: Is a second booster for COVID-19 the right choice for you? – The Mercury News
A doctor loads a dose of Pfizer COVID-19 vaccine into a syringe, on Dec. 2, 2021, at a mobile vaccination clinic in Worcester, Mass.
A doctor loads a dose of Pfizer COVID-19 vaccine into a syringe, on Dec. 2, 2021, at a mobile vaccination clinic in Worcester, Mass.
