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  2. 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]

  3. 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.

  4. Robert Rayford - Wikipedia

    en.wikipedia.org/wiki/Robert_Rayford

    Robert Lee Rayford [1] (February 3, 1953 – May 15, 1969), [2] sometimes identified as Robert R. due to his age, was an American teenager from Missouri who has been suggested to represent the earliest confirmed case of HIV/AIDS in North America. This is based on evidence published in 1988 in which the authors claimed that medical evidence ...

  5. 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 ...

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  7. History of HIV/AIDS - Wikipedia

    en.wikipedia.org/wiki/History_of_HIV/AIDS

    Proponents of this dating link the HIV epidemic with the emergence of colonialism and growth of large colonial African cities, leading to social changes, including a higher degree of non-monogamous sexual activity, the spread of prostitution, and the concomitant high frequency of genital ulcer diseases (such as syphilis) in nascent colonial cities.

  8. Spillover (book) - Wikipedia

    en.wikipedia.org/wiki/Spillover_(book)

    Spillover: Animal Infections and the Next Human Pandemic is 2012 non-fiction book by David Quammen.The book, written in narrative form, tells through the personal experiences of the author, who interviewed numerous pathologists and virologists globally to trace the evolution of some of the major pathogens that have affected the human species following a species leap (), a natural process by ...

  9. HIV/AIDS in North America - Wikipedia

    en.wikipedia.org/wiki/HIV/AIDS_in_North_America

    As of 2016, it is estimated that there are 1.5 million adults and children living with HIV/AIDS in North America, excluding Central America and the Caribbean. [ 1 ] 70,000 adults and children are newly infected every year, and the overall adult prevalence [ clarification needed ] is 0.5%.

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