MEXICO CITY — On New Year’s Day, dozens of people stood in line with empty oxygen tanks in one of Mexico City’s hardest-hit boroughs to take advantage of a city offer of free oxygen refills for ...

VILLA EL SALVADOR, Peru (AP) — In the middle of what was once a sandy desert, on the outskirts of Peru’s capital, a new routine has emerged for many of the residents of the densely populated city of ...

After almost two weeks in the hospital battling COVID-19, Gerardo Mercado was ready to go home. There was just one problem: He couldn’t get portable oxygen cylinders to aid his recovery there.