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.
No relationship between population density and COVID-19 mortality (as of 10 January 2021) in three world regions combined (Panel A). Within three world regions, the relationships between population density and COVID-19 mortality go in the opposite directions (Panel B). Data points are scaled to reflect COVID-19 testing rates per 1 million population.
