Today and tomorrow the Centers for Disease Control and Prevention's (CDC's) advisory group on immunization practices (ACIP) will meet to discuss the role of COVID-19 booster shots in the country's ongoing campaign to vaccinate its way out of the pandemic.The meetings follow all three manufacturers of the vaccines currently used in the United States—Pfizer, Moderna, and Johnson & Johnson (J&J)—releasing data showing booster doses significantly raise immune responses to COVID-19 and enhance vaccine efficacy.
Despite the evidence, some experts have wondered just how much adding a third dose of Pfizer or Moderna, or a second dose of J&J, will actually reduce hospitalization and deaths from COVID-19, the most important metrics of the pandemic.Al