Fig. 1.
Cases of laboratory-confirmed influenza A(H1N1)pdm09 and associated deaths (n = 58) by date of illness onset, Viet Nam, June 2009 to March 2010
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.