Chilean health authorities approved on Monday the use of the Sinovac vaccine against the coronavirus for 6-year-old children and older, the first Latin America’s country to take that step. Heriberto...

President Joe Biden announced a month-long push in June for 70% of U.S. adults to be vaccinated with at least one shot by July 4. Right now, we’re only at about 64 percent of people age 18 and older....