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  3. There is a substantial body of evidence showing that HIV causes AIDS—and that antiretroviral treatment (ART) has turned the vira

There is a substantial body of evidence showing that HIV causes AIDS—and that antiretroviral treatment (ART) has turned the vira

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问题     There is a substantial body of evidence showing that HIV causes AIDS—and that antiretroviral treatment (ART) has turned the viral infection from a death sentence into a chronic disease. Yet a small group of AIDS denialists keeps alive the conspiratorial argument that ART is harmful and that HIV science has been corrupted by commercial interests. Unfortunately, AIDS denialist have had a disproportionate effect on efforts to stem the AIDS epidemic. In 2000, South African President Thabo Mbeki took these claims seriously, opting to debate the issue, thus delaying the introduction of ART into the South African public health sector. At least 330,000 South Africans died unnecessarily as a result.
    The "hero scientist" of AIDS denialism, University of California, Berkeley, virologist Peter Dues-berg, argues that HIV is a harmless passenger virus and that ART is toxic, even a cause of AIDS. He has done no clinical research on HIV and ignores the many rebuttals of his claims in the scientific literature. In 1993, John Maddox, then editor of Nature, complained that Duesberg was "wrongly using tendentious arguments to confuse understanding of AIDS," and that because he was not engaging as a scientist, he would no longer be granted an automatic "right of reply. "
    More recently, in 2009, ADIS activists and HIV scientists, including Nobel Laureate Francoise Barre-Sinoussi, complained to Elsevier, the publisher of Medical Hypotheses, when that journal published a paper by Duesberg defending Mbeki and denying the existence of the African AIDS epidemic. Medical Hypotheses had a policy against peer review, so Elsevier asked The Lancet to oversee a peer review of the paper. When the panel of reviewers unanimously recommended rejection, Elsevier permanently withdrew it and forced Medical Hypotheses to introduce peer review. Last December Duesberg published a reworked version in an Italian journal, sparking further controversy and protests from the journal’s editorial board, one of whom has already resigned.
    Efforts by scientists to defend science are supplemented by pro-science activists operating on the Internet. Physician, author, and blogger Ben Goldacre argued in his Guardian column Bad Science that a "ragged band of bloggers from all walks of life" has been very successful at exposing pseudo-scientific claims and cheating alternative practitioners selling quack cures. The Internet now poses a double-edged sword for AIDS denialists. It is becoming a tougher place for people to segregate themselves in a comfortable cocoon of the like-minded. While the web allows denialists to advertise their ideas and build networks, it also exposes potential converts to scientific rebuttals of their claims, as well news about the deaths of the "living icons" —high-profile HIV-positive people who rejected ART.
    The key living icon for AIDS denialism was Christine Maggiore. She founded Alive & Well AIDS Alternatives (an organization with Duesberg on its board), campaigned against the use of ART to prevent mothers passing HIV to their babies, and met President Mbeki. Despite her 3-year-old daughter’s succumbing to AIDS, Maggiore remained firmly opposed to HIV science and ART. She opted for alternative therapies and died at the age of 52, from AIDS-related infections.
    Scientists often have a tough time responding to anti-science conspiracy theories because their integrity is attacked by the conspiratorial moves made against them. But precisely because living icons like Maggiore lent confidence to AIDS denialism by appearing to offer "living proof" that the science of HIV pathogenesis and treatment is wrong, pro-science activists maintain a list of denialists who have died of AIDS. The weapons of science and reason are still very much in contention, but the gloves have come off in a broader struggle over credibility.
In the author’s view, living icons like Maggiore serve in the HIV science as________.
选项 A、a powerful weapon
B、a double-edged sword
C、a feeble angel
D、a wicked devil
答案B
解析 事实细节题。第四段末句指出，活象征是艾滋病否定主义的活证明，有力的反驳了HIV科学；但由于活象征相继死亡，也在一定程度上否定了艾滋病否定主义，这对HIV科学来说无疑是有利的。第五段叙述了活象征Maggiore(玛乔丽)的事例，由于她反对HIV科学和ART的使用，导致自己和女儿都死于艾滋病。所以活象征既挑战了HIV科学，也为其提供了活生生的依据，所以活象征在HIV科学中的作用是双面的，故答案为B项。
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