This chart shows how the number of cases has doubled every two to three days since the beginning of March. South Korea has successfully reduced the spread of the coronavirus among its citizens. Since early March, when the virus infected hundreds of members of a single South Korean church, the number of new cases reported each day has slowed to a trickle. The same can’t be said for the U.S. and Italy, where the chart shows growing numbers of new cases being reported each day.
Updated Tuesday, 1 p.m.