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.
R0 values for different regions in China (scaled to 0-3). A, B, C, D indicates the clustering based on different sets of features. White colour indicates no cases in that prefecture. Darker shade of red corresponds to higher R0 and vice versa.
