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28 lip 2006 · HIV-2 originated in SIVsm of sooty mangabeys (Cercocebus atys), and its even more numerous cross-species transmission events have yielded HIV-2 groups A to H (2, 3).
5 maj 2003 · We provide the first estimated dates of cross-species transmissions of HIV-2. Our results indicate a transfer of HIV-2 subtypes A and B from sooty mangabeys to humans during the first half of the 20th century.
1 cze 2021 · Explain how HIV evolved from cross-species transmission of strains of simian immunodeficiency virus (SIV) to humans (viral zoonosis), spread out of Africa in the early 20th century, and eventually resulted in the global AIDS pandemic
Phylogenetic analyses have revealed the origins of HIV-1: chimpanzees were the original hosts of this clade of viruses; four lineages of HIV-1 have arisen by independent cross-species transmissions to humans and one or two of those transmissions may have been via gorillas.
According to the natural transfer theory (also called "hunter theory" or "bushmeat theory"), in the "simplest and most plausible explanation for the cross-species transmission" [10] of SIV or HIV (post mutation), the virus was transmitted from an ape or monkey to a human when a hunter was cut or otherwise injured while hunting or butchering an ...
28 lis 2018 · The inklings of an answer began to emerge from two West African patients presenting with an antigenically distinct AIDS-causing virus that subsequently came to be known as HIV-2 (MILESTONE 6...
1 lut 2017 · Both HIV-1 and HIV-2 descended genetically from Simian immunodeficiency virus via cross-species transmission. HIV-1 group M was the first lineage discovered and represents the pandemic form of the virus.
