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.
The proportion of records that had observations about land cover, anthropogenic land use, and/or water sources contained within the text according to which search they were returned from. Black represents the proportion of records in the vector data (N = 34) and gold represents the proportion of records in the virus data (N = 56).
