HIV/AIDS denialism

HIV/AIDS denialism rejects or distorts evidence that human immunodeficiency virus causes acquired immunodeficiency syndrome, sometimes claiming HIV is harmless or unrelated to AIDS.

Peter Duesberg: A molecular biologist who argued that HIV does not cause AIDS and proposed alternative explanations. His claims became a central scientific reference point for HIV/AIDS denialism.
HIV: A retrovirus that infects immune cells and can progressively impair immune function without effective treatment. This is the virus whose causal role denialism rejects.
HIV/AIDS in South Africa: The course of HIV infection and AIDS in South Africa, a country with one of the world’s largest epidemics. Denialist influence there coincided with delayed access to effective treatment.
Scientific consensus on HIV and AIDS: The conclusion that HIV causes AIDS, supported by converging laboratory, clinical, epidemiological, and treatment evidence. It directly contradicts the defining claim of HIV/AIDS denialism.
Thabo Mbeki: South Africa’s president from 1999 to 2008, whose government questioned the link between HIV and AIDS. His administration gave denialist arguments influence over South African AIDS policy.
AIDS: A syndrome of severe immune deficiency marked by opportunistic infections and certain cancers. Its characteristic progression is explained by untreated HIV infection.
Nattrass study of AIDS deaths: A demographic analysis estimating deaths associated with South Africa’s delayed public antiretroviral treatment rollout. It quantified the mortality consequences attributed to the policy delay.
Koch’s postulates: A historical set of criteria for linking a microorganism to a disease. Denialists have invoked these criteria, although modern virology uses broader causal evidence.
South African AIDS crisis: A severe HIV epidemic in South Africa, intensified by inadequate prevention and treatment during the early 2000s. It exposed the human costs of government policies shaped by denialist claims.
CD4 T cell: An immune cell that coordinates immune responses and serves as a principal target of HIV. Progressive loss of these cells links HIV infection to immune deficiency.

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