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 indicating significant pathways of diffusion estimated between district groups within HCMC. Solid lines indicate diffusion pathways among areas with a shared border. Dashed lines indicate diffusion pathways among areas that do not have a shared border. Numbers in parentheses indicate the number of sequences included in each group.
