How Effective Is Pfizers Covid Vaccine Today? Key Facts

how effective is pfizers covid vaccine today

Nearly four years after the first shots went into arms, the Pfizer-BioNTech COVID-19 vaccine remains a central tool in preventing severe illness, hospitalization, and death. Its effectiveness today depends heavily on one factor: how recently you received a dose. The original two-dose series offers limited protection against current variants, but an updated booster dose restores … Read more