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.
Reconstructed BTV-8 epidemic in North Europe. The arrows show the direction of infection movement from infected farms (arrow origins) to farms that they infect (tips of arrows). In crossed grey circles and from left to right are three major cities: Ghent, Maastricht and Cologne. Farm locations are based on GPS readings (WGS84 data), expressed in degrees.
