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.

Now that the federal government is recommending that many COVID-vaccinated Americans receive booster shots starting this fall, it’s important to know what a “booster” is and how it differs from a ...

COVID-19 cases and hospitalizations are on the rise again ahead of the busy holiday travel season. Dr. Eric Cioe-Peña joins CBSN to discuss what this means for families planning to gather this ...

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

The US Centers for Disease Control and Prevention strengthened recommendations for booster doses of coronavirus vaccine Monday, saying all adults should get boosted six months after the second dose of ...

People most vulnerable to Covid-19 are being urged not to miss out as the spring booster programme enters its final month.

NEW YORK - Debate over the need for COVID-19 booster shots is clouding the outlook for Moderna Inc's high-flying shares after ...

Pfizer says that it "hit the sweet spot" with its coronavirus vaccine for children ages 5 to 11. CBS News' Mola Lenghi reports that the company will be applying for emergency use authorization by the ...