This interactive map shows the spread of the virus that causes COVID-19 around the world since late January 2020. Health officials in China first announced they were treating dozens of cases of an unknown illness on Dec. 31, 2019, and reported the first known death from the new coronavirus on Jan. 11, 2020.
Source: Johns Hopkins CSSE
Graphic: Shelly Cheng, Amy O'Kruk, Nelson Hsu/ NBC Owned Television Stations
