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HIV/AIDS Vaccine Development

SIVsm virus elicits antibodies with heterologous neutralizing activity

Published in Vaccine Weekly, October 26th, 2005

Infection with a molecularly cloned SIVsm virus elicits high-titer homologous neutralizing antibodies with heterologous neutralizing activity.

"We have evaluated the in a cohort of six Macaca nemestrina infected with the cloned virus SIVsm62d that showed different levels of envelope diversification. Two progressor macaques developed AIDS by 1.5 years post-inoculation and four non-progressors were asymptomatic for 3 years of follow-up. All macaques developed high titers of neutralizing antibodies against homologous SIVsm viruses and intermediate titers against SIVsmB670," scientists in the United States report.

"Heterologous virus...

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