Countries under coronavirus lockdowns should only ease those restrictions if they can control new infections and trace contacts, the World Health Organization says. Here, Hashim, a health care worker, recently greeted his daughter through a glass door as they maintained social distance due to the COVID-19 outbreak in New Rochelle, N.Y.

Countries under coronavirus lockdowns should only ease those restrictions if they can control new infections and trace contacts, the World Health Organization says. Here, Hashim, a health care worker, recently greeted his daughter through a glass door as they maintained social distance due to the COVID-19 outbreak in New Rochelle, N.Y.