When was HIV virus discovered?

Discussion in 'AIIMS Nov 2013' started by samuel, Dec 17, 2014.

  1. samuel

    samuel New Member

    When was HIV virus discovered?
    a) 1983
    b) 1976
    c) 1969
    d) 1992

    Answer: 1983

    AIDS was first clinically observed in 1981 in the
    United States. The initial cases were a cluster
    of injection drug users and gay men with no
    known cause of impaired immunity who
    showed symptoms of Pneumocystis carinii
    pneumonia (PCP), a rare opportunistic infection
    that was known to occur in people with very
    compromised immune systems.
    In 1983, two separate research groups led by
    Robert Gallo and Luc Montagnier independently
    declared that a novel retrovirus may have been
    infecting AIDS patients, and published their
    findings in the same issue of the journal

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