New HIV strain discovered

Researchers find virus strain in African woman that likely originated from gorillas.

    The equivalent of HIV in apes was first
    discovered in gorillas in 2006 [EPA]

    The 62-year-old woman had no contact with gorillas but said she had had several sex partners. 

    She was diagnosed with HIV in 2004, soon after she moved to France from Cameroon.

    Routine genetic sequencing of the virus showed it looked like no other sample of HIV virus and it was eventually compared to a gorilla simian immunodeficiency virus which was discovered in 2006.

    Source

    All previously discovered subtypes of the virus have been linked to chimpanzees.

    "Our findings indicate that gorillas, in addition to chimpanzees, are likely sources of HIV-1," Plantier's team wrote.

    "The discovery of this novel HIV-1 lineage highlights the continuing need to watch closely for the emergence of new HIV variants, particularly in western central Africa, the origin of all existing HIV-1 groups."

    There are several theories seeking to explain how SIV, the equivalent of HIV in apes, entered humans.

    Scientists say it likely jumped to people hunting chimps. Either an infected ape bit a human, or a SIV-infected animal was killed for bush meat, and the virus entered the
    bloodstream of the butcher through tiny cuts in the hand. 

    HIV has infected an estimated 33 million people globally and has killed another 25 million.

    SOURCE: Agencies


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