Ducharme is a contributor to TIME. A health worker in Chile vaccinates someone with an AstraZeneca shot as a third booster dose against COVID-19 on Aug. 10, 2021. Ducharme is a contributor to TIME.

Gen. Colin Powell, former secretary of state, died Monday at 84 from COVID-related complications, though he was fully ...

A decades-long, nationwide commitment to a wholesale vaccination policy began unraveling Wednesday, with some states moving to preserve broad access to inoculations while others lurched in the ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of the measles virus. In Texas, at least 90 cases of measles have been reported in recent weeks across the ...

Stopping by at a pharmacy to get a COVID-19 booster shot this fall may be different, and more difficult, than previous years after changes to vaccine recommendations become more vague. The most recent ...

The return of measles to the U.S. may have many people wondering whether they should get a measles vaccine booster. Pictured here is an information booth for measles vaccinations offered by Harris ...

Throughout February, a measles outbreak has been growing in West Texas. The potentially deadly disease, once eliminated from the United States in terms of its continuous transmission, has been making ...

Measles has been making an unwelcome comeback in the U.S. and world lately. Its resurgence might be enough to make many of us reasonably wonder: Just how protected am I from measles? And should I ...

The COVID-19 fall 2025 booster is now widely available in Massachusetts, with Gov. Maura Healey issuing a standing order on Sept. 3 to ensure access for “all eligible persons.” How to get a COVID-19 ...