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J. Virol., 05 1996, 3045-3050, Vol 70, No. 5
Y Lu, P Brosio, M Lafaile, J Li, RG Collman, J Sodroski and CJ Miller
Chimeric simian/human immunodeficiency viruses (SHIVs) that express the env
genes derived from distinct HIV type 1 (HIV-1) isolates were tested for the
ability to infect rhesus macaques following intravaginal inoculation. SHIVs
containing either the HIV-1 HXBc2 or the HIV-1 89.6 envelope glycoproteins
were capable of replicating in intravenously inoculated rhesus macaques.
However, intravaginal inoculation of animals with these two SHIVs resulted
in infection only with the SHIV containing the HIV-1 89.6 glycoprotein.
Thus, properties conferred by the envelope glycoproteins in the chimeric
virus affect the ability of particular SHIVs to initiate a systemic
infection following vaginal inoculation. These results provide indirect
support for the hypothesis that the selection of specific viral variants
occurs in the genital tracts of individuals exposed to HIV by sexual
contact.
Copyright © 1996, American Society for Microbiology
Vaginal transmission of chimeric simian/human immunodeficiency viruses in rhesus macaques
Virus Research Institute, Cambridge, Massachusetts 02138, USA.
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