INFECTIOUS DISEASE

Proof of vax required as strict mandate takes effect in LA

Los Angeles is among a growing number of cities across the U.S requiring people to show proof of vaccination to enter various types of businesses and venues. But rules in the nation's second-most-populous city, called SafePassLA, apply to more types of businesses and other indoor locations.

EXPLAINER: How US rules on international travel are changing

More than a year and a half after COVID-19 concerns prompted the U.S. to close its borders to international travelers from countries including Brazil, China, India, South Africa, the United Kingdom and much of Europe, restrictions are shifting to focus on vaccine status.

The rules on face masks at the office are changing

Some big U.S. employers have dropped workplace mask requirements as COVID-19 cases fall and vaccination rates rise. Staffers at other companies are wondering whether they can ditch masks, too.