Health officials have known these things for years. A growing pile of federally funded reports on HIV transmission, published over the past decade and available to anyone who has the time to read them, shows that men almost never get HIV from women. In fact, according to a 1998 study in the Journal of the American Medical Association, a disease-free man who has an unprotected one-nighter with a drug-free woman stands a one in 5 million chance of getting HIV. If he wears a condom, itâs one in 50 million. Heâs more likely to be struck by lightning (one in 7000,000).
Female to male transmission is very inefficient, says Dr. Nancy Padian a professor in the department of obstetrics, gynecology and reproductive science at the University of California, San Francisco and the author of a 1996 10 year study of HIV infected heterosexual couples, the nation's longest and largest. She points out that âits two to three times easier for men to infect women.â But even so, if there are no other risk factors involved, the rate at which an infected man will transmit the virus to a woman is one in 1,100 sex acts.
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Straight men are still haunted by the notion that old-fashioned sex can be lethal. Among the biggest fear factors, some AIDS educators say, is shoddy federal health data. The CDC statistics are only good as the local health departments that gather them. But many of those departments donât have time or resources for âsurveillanceâ staff to investigate every personâs claim of how they contracted the virus. If a man wants to lie about having had sex with other men, he can, and that makes it look like more people get AIDS from straight sex than really do. By re-interviewing victims, their doctors, and their families, Chicagohealth officials found in 1997 that in 85% of the cases the city had blamed on heterosexual transmission, other risk factors were present. This phenomenon became a source of black humor at New York Cityâs overworked health department in the late eighties. âWhat do you call a man who got HIV from his girlfriend?â the joke went. âA liar.â