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.
Map of the region studied showing the 20 investigated sites and highlighting in red those where samples were found positive for coronaviruses. Black and gray indicate localities where samples were found negative for coronaviruses with presence or absence of Mus musculus, respectively. Circles and triangles indicate anthropic and no anthropic localities, respectively.
