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.
New World Countries with West Nile Virus evidence until 2012 (grey areas). Few areas have not reported virus activity (Central America: Honduras and Panama; West Indies: Barbados and Grenada; South America: Bolivia, Ecuador, French Guinea, Guyana, Paraguay, Peru, Suriname and Uruguay
