Method of Infection, AIDS Diagnoses 2008-2011

"From 2008 through 2011, the annual number of infections classified as stage 3 (AIDS) among adult and adolescent males with HIV infection attributed to male-to-male sexual contact increased. The numbers of stage 3 (AIDS) classifications among males with infection attributed to injection drug use, to male-to-male sexual contact and injection drug use, and to heterosexual contact decreased. The number of infections classified as stage 3 (AIDS) among adult and adolescent females with HIV infection attributed to injection drug use decreased; the number with infection attributed to heterosexual contact remained stable."

Source: 

Centers for Disease Control and Prevention. HIV Surveillance Report, 2011, "Rates of diagnoses of HIV infection among adults and adolescents, by area of residence, 2011—United States and 6 dependent areas"; Vol. 23, p. 7. Published February 2013. Accessed May 21, 2013.
http://www.cdc.gov/hiv/pdf/sta...