For decades, Western docs and nurses have parachuted into poor countries to perform surgeries. That's not working in this pandemic. But there's a new twist that holds promise.

Researchers looked at the impact of free masks, text reminders and celebrity endorsements. It's unclear if the best strategies will help counter anti-mask sentiment in the U.S. during the delta surge.

The winning images from this year's iPhone Photography Awards feature a man connecting with his horse, two rugged shepherds holding soft lambs and a figure looking into a brilliant night sky.

The target numbers, focusing on kids, teens and young women, were part of the 5-year "Start Free, Stay Free, AIDS Free" program. What went wrong? Is there hope for improvement in the future?

John Baptist Mukasa is one of the 4 million-plus people around the globe who have died because of this pandemic. His death is a reminder of the devastating toll of COVID-19.