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 relative proportion of each subtype/recombinant is shown in the pie chart for each country. The data on Figure 1 are from the former studies in the region and estimates made by AVAN Task Force members of the manuscript based on the unpublished data of their own research projects.
