#香港大学 #科研 #疫苗 #科兴 #辉瑞 #Omicron #加强针
【香港数据显示接种三剂疫苗可有效预防奥密克戎死亡】
香港大学发表了一项非常重要的真实世界研究，分析了这一波Omicron BA.2疫情下疫苗的有效率。
面对免疫逃逸能力极强的 Omicron，香港使用的两种疫苗在标准接种（两针）情况下，对于预防感染的有效率大幅降低，但是对于预防重症和死亡仍然保持较强的效果。而第三针疫苗接种后，保护力获得了全面提升。
香港这波疫情的真实世界数据表明，面对BA.2，无论是哪种疫苗，三针接种对于预防重症及死亡仍然保持着强大的效力。在其中一些组由于病例不足，目前的置信区间比较宽。
香港大学医学院院长梁卓伟(Gabriel Leung)说，二者中的任意一种如果接种三剂，都将获得非常非常有效的保护。(华尔街日报)(庄时利和 @微博)
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