Figure 1.
Epidemic curve of S. sonnei isolates in Thimphu, Bhutan from March 2011 to February 2013.
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.