An experimental vaccine regimen has shown a modest ability to protect people exposed to HIV, the first time an investigational HIV vaccine has been shown to have this effect.
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释义
种试验性免疫疫苗疗法显示出可适当保护爱滋病病毒(HIV)易感人群,这是尚在研究阶段的HIV疫苗首次显示出有此效果。
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