Viral load a major factor affecting risk of sexually transmittin...

Courtesy EurekAlert! - Infectious and Emerging Diseases  Wed, 01/11/2012 - 23:00

(Infectious Diseases Society of America) The level of HIV-1 in the blood of an HIV-infected partner is the single most important factor influencing risk of sexual transmission to an uninfected partner, according to a multinational study of heterosexual couples in sub-Saharan Africa.

The study, published in the Journal of Infectious Diseases and available online, calculated the risk of HIV-1 transmission per act of sexual intercourse and found the average rate of infection to be about 1 per 900 coital acts.

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