After former Secretary of State Colin Powell's death from complications of COVID-19, experts pointed out that the 84-year-old Powell had a history of medical conditions that significantly raised his risk of severe COVID-19, though he was fully vaccinated.
A growing body of research suggests infection plus vaccination provides the strongest protection against a wide range of variants, possibly for a long time.
NEW YORK (AP) — U.S. health officials are setting the stage for a national COVID-19 vaccination campaign for younger children, inviting state officials to order doses before the shots are authorized.
Even as the Delta-variant-driven virus wave is receding in much of the United States, many counties across the country's northernmost regions are experiencing rising cases as colder weather arrives.