Some of the usual knuckleheads at another site have posted a little piece on our favorite epidemiologist, the ditzy Dr. Nancy Padian:
One of the more egregious myths perpetrated by AIDS denialists is that HIV is not heterosexually transmitted. Part of the "evidence" that underlies this myth is a 1997 paper by Dr. Nancy Padian and her colleagues at the University of California, San Francisco (Padian NS, Shiboski SC, Glass SO, Vittinghoff E. 1997. Heterosexual transmission of human immunodeficiency virus (HIV) in Northern California: results from a ten-year study. Am J Epidemiol 146, 350-357) (1). The denialists either misinterpret or misunderstand this paper. Some internet sites/Blogs even go so far as to suggest that the "HIV/AIDS establishment" (sic) finds Dr. Padian's work inconvenient and has suppressed it, to the detriment of her professional career. The following commentary from Dr. Padian addresses HIV heterosexual transmission, discusses what her seminal 1997 paper does actually say and, ipso facto, speaks to the absurdity of the notion that her work has been suppressed, or is inconvenient to other AIDS researchers.
Isn't it funny how these stooges cannot even address the salient facts of the Padian paper? In fact, few of 'em ever even heard of the paper, until, ahem, yours truly started beating 'em over the head with it at Tara Smith's blog.
Then, these jokers trot out ditzy Nancy to pontificate a bit:
HIV is unquestionably transmitted through heterosexual intercourse. Indeed, heterosexual intercourse is now responsible for 70-80% of all HIV transmissions worldwide
Hmm. That's quite a bold statement, Nancy. Have epidemiological studies in the USA backed this up?
A common practice is to quote out of context a sentence from the Abstract of the 1997 paper: "Infectivity for HIV through heterosexual transmission is low".
Well, that's because infectivity for HIV is low. You estimated 1/1000 sex acts for a woman to get it from an infected man, and 1/10,000 for a man to get it from an infected woman. But,here is my absolutely favorite part:
"That we witnessed no HIV transmissions after the intervention documents the success of the interventions in preventing the sexual transmission of HIV"
So, lemme get this straight. You observed hundreds of discordant HIV+ couples for 6 years, having kinky sex of all types -- and NOT ONE, SINGLE, SOLITARY PERSON CONTRACTED THE VIRUS?!!?
Ok, that sure is an "inconvenient truth" as Al Gore might say. But, that doesn't deter the AIDS zealots -- they PREVENTED infection with all their wonderful interventions, where condoms had a whopping, majestic, infallible success rate of 100%!!! Er, no: Ditzy Nancy forgot an important paragraph in her own paper:
"Nevertheless, the absence of seroincident infection over the course of the study cannot be entirely attributed to significant behavior change. No transmission occured among the 25 percent of couples who did not use condoms consistently at their last follow-up nor among the 47 couples who intermittently practiced unsafe sex during the entire duration of follow-up" (Padian, pg 356.)
Here's the bottom line on the Padian Paper:
1. It was the largest and longest epidemiological study of heterosexual transmission of HIV in America. (Padian, pg 354.)
2. Not a single person in the prospective study contracted HIV, despite lots of sex with HIV+ individuals. (Padian, pg 354.)
3. A significant portion did not wear condoms consistently, including 47 couples whom Nancy described has having "unsafe sex." I repeat:
Nevertheless, the absence of seroincident infection over the course of the study cannot be entirely attributed to significant behavior change. No transmission occured among the 25 percent of couples who did not use condoms consistently at their last follow-up nor among the 47 couples who intermittently practiced unsafe sex during the entire duration of follow-up" (Padian, pg 356.)
I'm sorry, Nancy, since nobody got HIV, what was so "unsafe" about the sex again?
In sum, the scientific facts of this large study decimate the purported link between HIV transmission and sex. More so, even if trivial amounts of HIV can be infrequently transmitted sexually, it surely doesn't account for the "epidemic" of 1 million people in the US who have HIV per the CDC.