Farber proceeds from column 2 to the end of column 3 to postulate other causes of AIDS and makes various statements about the demographics of AIDS. No sources are cited for her ponderings. This is a particularly poorly researched and fact-checked part of the article. Not a single credible peer-reviewed article published in a credible scientific journal since 1990 offers any support for what she says here. Instead of a complete point-by-point explanation, some critical comments are offered: (1) HIV does affect the heterosexual population in the US, not just gay men80 . The US population in which HIV infection is now spreading most rapidly is African-American women. Poverty (where untreated sexually transmitted infections, lack of prevention knowledge, lack of power of women to negotiate condom use, increased frequency of transactional sex are more likely than in wealthier populations), unprotected anal sex (due to greater risk of abrasions), blood transfusions, intravenous needle reuse and exposure to multiple partners. all increase risk of HIV transmission and explain the demographic aspects of the disease with which Farber fumbles. (2) In contrast to Farber's implication that proposed causes of AIDS other than HIV have not been tested, they have â in great depth. These studies have found that in the absence of HIV none of recreational drug use, poverty, malnutrition and homosexuality can predict the onset of AIDS. Footnote 14 is consequently false too. There is no evidence that recreational drug use is the cause of AIDS. We quote an NIAID rebuttal to this myth: [I]n a prospectively studied cohort in Vancouver, 715 homosexual men were followed for a median of 8.6 years. Among 365 HIV-positive individuals, 136 developed AIDS. No AIDS-defining illnesses occurred among 350 seronegative men despite the fact that these men reported appreciable use of inhalable nitrites ("poppers") and other recreational drugs, and frequent receptive anal intercourse (Schechter et al. Lancet 1993;341:658). Other studies show that among homosexual men and injection-drug users, the specific immune deficit that leads to AIDS -a progressive and sustained loss of CD4+ T cells -is extremely rare in the absence of other immunosuppressive conditions. For example, in the Multicenter AIDS Cohort Study, more than 22,000 T-cell determinations in 2,713 HIV-seronegative homosexual men revealed only one individual with a CD4+ T-cell count persistently lower than 300 cells/mm3 of blood, and this individual was receiving immunosuppressive therapy (Vermund et al. NEJM 1993;328:442). In a survey of 229 HIV-seronegative injection-drug users in New York City, mean CD4+ T-cell counts of the group were consistently more than 1000 cells/mm3 of blood. Only two individuals had two CD4+ T- cell measurements of less than 300/mm3 of blood, one of whom died with cardiac disease and non- Hodgkin's lymphoma listed as the cause of death (Des Jarlais et al. J Acquir Immune Defic Syndr 1993;6:820).81 The use of some recreational drugs, such as metamphetamines, can place individuals at greater risk of acquiring HIV infection by lowering inhibitions and increasing the probability of engaging in, e.g., unsafe sexual practices. This does not mean that drugs cause AIDS. (3) Farber's claim that researchers have failed to demonstrate a higher incidence of AIDS in people with HIV is false. See the above studies. There are many more. Here is a further tiny sample of such studies, including some from Africa: (i) The Multicenter AIDS Cohort Study (MACS) and the Women's Interagency HIV Study (WIHS) consisted of 8,000 participants in the US. It demonstrated that participants with HIV were approximately 1,100 times more likely than people without HIV to get a disease associated with AIDS. 82 (ii) A one-year South African study of 1,792 HIV-positive and 2,970 HIV-negative gold miners found that miners with HIV were nearly three times more likely to be hospitalised and nine times more likely to die than HIV-negative ones. 83 (iii) Researchers at Chris Hani Baragwanath Hospital in Johannesburg looked at deaths of HIV-positive and HIV-negative children between 1992 and 1996. They found that deaths increased among HIV-positive children but decreased among HIV-negative ones. 84 (iv) A study in Uganda of nearly 20,000 people found that HIV-positive people had a death rate more than twenty times higher than HIV-negative people. 85 Incidentally, in this study, educated people and civil servants were more likely to die, which is inconsistent with poverty being the cause of AIDS (though it certainly is an exacerbating factor). (v) In Cote dIvoire, HIV-positive people with TB were 15 times more likely to die within six months than HIV-negative people with TB. 86 (vi) A study in Rwanda found that death was 21 times higher for HIV-positive children than for HIVnegative children. 87 (vii) A study of pregnant women at King Edward Hospital in Durban, South Africa found that those with HIV had a ten times higher rate of turberculosis than those without.88 (viii) A study of over 6,000 people with haemophilia in the United Kingdom found that those with HIV had a much higher death rate. The death rate amongst HIV-negative haemophiliacs stayed stable during the analysis period (1977 to 1991). The death-rate amongst haemophiliacs who contracted HIV rose dramatically from 1984 to the end of the study period. 89 This disproves Farber's assertion that no studies have been carried out to determine if haemophiliacs infected with HIV die sooner than those not infected. (ix) As explained by the NIH Similar data have emerged from the Multicenter Hemophilia Cohort Study. Among 1,028 hemophiliacs followed for a median of 10.3 years, HIV-infected individuals (n=321) were 11 times more likely to die than HIV-negative subjects (n=707), with the dose of Factor VIII having no effect on survival in either group (Goedert. Lancet 1995;346:1425).90 Factor VIII is Duesberg's proposal for higher mortality in haemophiliacs with HIV. This study debunked this notion. See Cohen (1994)91 for a more detailed discussion. For further examples showing more illness and death among people with HIV, see NIAID (2003). A diligent search on Medline will elicit even more examples. (4) Farber provides no reference for her claim that HIV is a harmless passenger virus. The claim is false and disproven by the evidence presented in this document. (5) Farber provides no reference for her claim that HIV is primarily spread from mother-to-child. The claim is false. Most HIV transmission is through heterosexual sex. (6) In footnote 14 Farber claims that the majority of Kaposi's sarcoma patients are heavy users of nitrate inhalers. She gives no reference. Assuming she's right, if a sizeable minority are not, then nitrate inhalers cannot be the cause of Kaposi's sarcoma. Once infected with HIV, recreational drug use and poverty are factors in the progression of HIV to AIDS, but HIV progresses to AIDS in sufficiently large numbers of well-off people who do not use recreational drugs to disprove that drugs or poverty are the cause of AIDS. |