SEATTLE (AP) — When Seattle’s largest health care system got a mandate from Washington state to create a mass COVID-19 vaccination site, organizers knew that gathering enough volunteers would be almost as crucial as the vaccine itself.

NASHVILLE, Tenn. (AP) — Rita Fentress was worried she might get lost as she traveled down the unfamiliar forested, one-lane road in rural Tennessee in search of a coronavirus vaccine. Then the trees cleared and the Hickman County Agricultural Pavilion appeared.

How would COVID-19 vaccine makers adapt to variants?

The U.S. stood Sunday at the brink of a once-unthinkable tally: 500,000 people lost to the coronavirus.

CHICAGO (AP) — In a makeshift vaccination center at a safety-net Chicago hospital, a patient services aide ushers an older woman with a cane toward a curtained cubicle.

WASHINGTON (AP) — The Pentagon will deploy more than 1,100 troops to five vaccination centers in what will be the first wave of increased military support for the White House campaign to get more Americans inoculated against COVID-19.

AstraZeneca’s COVID-19 vaccine does more than prevent people from falling seriously ill — it appears to reduce transmission of the virus and offers strong protection for three months on just a single dose, researchers said Wednesday in an encouraging turn in the campaign to suppress the outbreak.