Fig. 1.
Cumulative confirmed cases of COVID-19 in China, as of 15 March, 2020. Sudden increase of the cases in China on February 17 is due to the change in COVID-19 diagnostic criteria.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.