Heterologous Prime/Boost Regimens Evaluated in Preventative HIV Vaccination

by Kathy Jones on  October 2, 2014 at 11:53 PM AIDS/HIV News
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Official data suggests that nearly 40 million people worldwide live with HIV/AIDS, with an estimated 2.5 million new cases per year.
 Heterologous Prime/Boost Regimens Evaluated in Preventative HIV Vaccination
Heterologous Prime/Boost Regimens Evaluated in Preventative HIV Vaccination

Therefore, there has been a large global effort to develop an effective vaccine against the virus. HIV-1 vaccine development has been challenging but recent clinical trials have been promising. A new study in the Journal of Clinical Investigation discusses the results from a clinical trial that evaluated the immune response following different HIV vaccine regimes.

Nicole Frahm and colleagues tested prime-boost regimes combining a New York vaccinia HIV clade B (NYVAC-B) vaccine and a recombinant adenovirus 5-vectored (rAd5-vectored) vaccine in a cohort of healthy volunteers. Individuals that received the rAd5-vectored vaccine followed by the NYVAC-B vaccine exhibited the strongest anti-HIV immune responses. A regime in which individuals received the NYVAC-B vaccine prior to the rAd5-vectored vaccine was not as effective. The results from this study will be important for the design of further clinical trials to evaluate potential HIV-1 vaccine regimes.



Source: Eurekalert

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