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.
Geographical distribution of the number of people living with human immunodeficiency virus/AIDS reported among older adults at the city level in the years 2005, 2008, 2010, and 2012 in China. Abbreviation: HIV, human immunodeficiency virus.
