Boston urged people to start wearing masks Thursday and the Biden administration weighed its next legal step in what is shaping up to be a high-stakes court fight over the abrupt end of the national mask mandate on airplanes and mass transit. The Boston Public Health Commission noted a rise ...

WASHINGTON — The Justice Department is filing an appeal seeking to overturn a judge’s order that voided the federal mask mandate on planes and trains and in travel hubs, officials said Wednesday. The notice came minutes after the Centers for Disease Control and Prevention asked the ...

The Justice Department said Tuesday it will not appeal a federal district judge’s ruling that ended the nation’s federal mask mandate on public transit unless the Centers for Disease Control and Prevention believes the requirement is still necessary. In a statement released a day after a ...

Moderna hopes to offer updated COVID-19 boosters in the fall that combine its original vaccine with protection against the omicron variant. On Tuesday, it reported a preliminary hint that such an approach might work. Today’s COVID-19 vaccines all are based on the original version of the ...

ST. PETERSBURG, Fla. — A federal judge in Florida on Monday voided the national mask mandate covering airlines and other public transportation as exceeding the authority of U.S. health officials in their response to the coronavirus pandemic. The mandate, recently extended by the U.S. ...

Pfizer said Thursday it wants to expand its COVID-19 booster shots to healthy elementary-age kids. U.S. health authorities already urge everyone 12 and older to get one booster dose for the best protection against the newest variants -- and recently gave the option of a second booster to ...