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  2. History of HIV/AIDS - Wikipedia

    en.wikipedia.org/wiki/History_of_HIV/AIDS

    The discovery of the main HIV/SIV phylogenetic relationships permits explaining broad HIV biogeography: the early centres of the HIV-1 groups were in Central Africa, where the primate reservoirs of the related SIVcpz and SIVgor viruses (chimpanzees and gorillas) exist; similarly, the HIV-2 groups had their centres in West Africa, where sooty ...

  3. HIV/AIDS in Africa - Wikipedia

    en.wikipedia.org/wiki/HIV/AIDS_in_Africa

    Prevalence of HIV/AIDS in Africa, total (% of population ages 15–49), in 2021 (World Bank) HIV / AIDS originated in the early 20th century and remains a significant public health challenge, particularly in Africa. Although the continent constitutes about 17% of the world's population, it bears a disproportionate burden of the epidemic. As of 2023, around 25.6 million people in sub-Saharan ...

  4. Cross-species transmission - Wikipedia

    en.wikipedia.org/wiki/Cross-species_transmission

    Cross-species transmission is the most significant cause of disease emergence in humans and other species. [citation needed] Wildlife zoonotic diseases of microbial origin are also the most common group of human emerging diseases, and CST between wildlife and livestock has appreciable economic impacts in agriculture by reducing livestock productivity and imposing export restrictions. [2]

  5. HIV/AIDS - Wikipedia

    en.wikipedia.org/wiki/HIV/AIDS

    HIV made the jump from other primates to humans in west-central Africa in the early-to-mid-20th century. [26] AIDS was first recognized by the U.S. Centers for Disease Control and Prevention (CDC) in 1981 and its cause—HIV infection—was identified in the early part of the decade. [21]

  6. Timeline of early HIV/AIDS cases - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_early_HIV/AIDS...

    In 2008, the sample was tested by researchers, identifying partial HIV viral sequences. [8] The specimen, named DRC60 contained a strain of HIV-1 around 88% similar to LEO70, but was found to be most closely related to HIV-1 (M) subgroup A isolates. These two specimens are significant not only because they are the oldest known specimens of HIV ...

  7. Timeline of HIV/AIDS - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_HIV/AIDS

    This is a timeline of HIV/AIDS, including but not limited to cases before 1980. Pre-1980s See also: Timeline of early HIV/AIDS cases Researchers estimate that some time in the early 20th century, a form of Simian immunodeficiency virus found in chimpanzees (SIVcpz) first entered humans in Central Africa and began circulating in Léopoldville (modern-day Kinshasa) by the 1920s. This gave rise ...

  8. Activist Hydeia Broadbent, who rose to prominence as a child ...

    www.aol.com/news/activist-hydeia-broadbent-rose...

    Hydeia Broadbent, a prominent HIV/AIDS activist who gained media attention for being a part of America’s “first generation of children born HIV positive” in the late 1980s, died Tuesday.

  9. Host switch - Wikipedia

    en.wikipedia.org/wiki/Host_switch

    In parasitology and epidemiology, a host switch (or host shift) is an evolutionary change of the host specificity of a parasite or pathogen.. For example, the human immunodeficiency virus used to infect and circulate in non-human primates in West-central Africa, but switched to humans in the early 20th century.