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USA GOV HIV
A very rare strain of AIDS virus previously found only among a few people in Cameroon has most probably spread outside the West African country, according to a case reported by The Lancet on Friday.
Introduction Heterosexual transmission of the human immunodeficiency virus (HIV) leading to the acquired immunodeficiency syndrome (AIDS) continues to fuel a major global pandemic  . The identification of an immunization strategy that can protect against mucosal HIV transmission via the female genital tract thus should provide an essential mechanism for halting the spread of HIV/AIDS.
By Kate Kelland LONDON | Mon Nov 21, 2011 3:51pm IST
A 3D representation that includes the retroviral psi packaging element. This is a solution RNA structure model of the HIV-1 dimerization initiation site in the kissing-loop dimer. [ 1 ]
Human immunodeficiency virus ( HIV ) is a lentivirus (slowly replicating retrovirus ) that causes acquired immunodeficiency syndrome (AIDS), [ 1 ] [ 2 ] a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. Infection with HIV occurs by the transfer of blood , semen , vaginal fluid , pre-ejaculate , or breast milk . Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells .
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