Fig. 4.
Daily confirmed cases of COVID-19 cumulative relative risk for daily mean temperatures at lags from 0 to 15 days in Beijing, Shanghai, Guangzhou, and Shenzhen
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.