CDC Webpage on STD and HIV Coinfection

"Individuals who are infected with STDs are at least two to five times more likely than uninfected individuals to acquire HIV if they are exposed to the virus through sexual contact. In addition, if an HIV-infected individual is also infected with another STD, that person is more likely to transmit HIV through sexual contact than other HIV-infected persons (Wasserheit, 1992)."

The link address is: http://www.cdc.gov/std/hiv/default.htm