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HIV/AIDS
New HIV/AIDS study findings have been reported from S. Sadagopal et al
July 2nd, 2008
According to recent research published in the Journal of Virology, "In this study, we monitored the temporal breadths, frequencies, and functions of antiviral CD4 and CD8 T cells in 2 of 22 DNA/modified vaccinia virus Ankara-vaccinated macaques that lost control of a simian-human immunodeficiency virus 89.6P challenge by 196 weeks postchallenge. Our results show that both mutation and exhaustion contributed to escape." "With the reappearance of viremia, responding CD8 and CD4 T cells underwent an initial increase and then loss of breadth and frequency. Antiviral gamma interferon (IFN-gamma)- and interleukin 2-coproducing cells were lost before IFN-gamma-producing...
Source: Vaccine Weekly (2008-07-02)
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