Here are the data for 2007: http://www.cdc.gov/hiv/topics/surveillance/basic.htm#hivaidsexposure http://www.cdc.gov/hiv/topics/surveillance/basic.htm#hivaids..

Here are the data for 2007: http://www.cdc.gov/hiv/topics/surveillance/basic.htm#hivaidsexposure http://www.cdc.gov/hiv/topics/surveillance/basic.htm#hivaids... Estimated # of HIV/AIDS Cases, in 2007 Category | Adult & Adolescent Male | Adult & Adolescent Female | Total ----------------------------+-------------------------+---------------------------+------- Male-to-male sexual contact | 22,472 | - | 22,472 Injection drug use | 3,133 | 1,806 | 4,939 Male-to-male sexual contact | | | and injection drug use | 1,260 | - | 1,260 High-risk heterosexual | | | contact* | 4,551 | 9,076 | 13,627 Other** | 102 | 96 | 198 * Heterosexual contact with a person known to have, or to be at high risk for, HIV infection. **Includes hemophilia, blood transfusion, perinatal exposure, and risk not reported or not identified.