A pedestrian wearing a face mask crosses a street in northern Tehran, Iran, Sunday, March 1, 2020. While the newRead More →

A pedestrian wearing a face mask crosses a street in northern Tehran, Iran, Sunday, March 1, 2020. While the new coronavirus has extended its reach across the world, geographic clusters of infections were emerging, with Iran, Italy and South Korea seeing rising cases. (AP Photo/Vahid Salemi)