科兴和国药疫苗对奥密克戎 BA.2 变异株引起的严重急性呼吸综合征冠状病毒 2 型感染的有效性：中国香港的一项回顾性队列研究。
Effectiveness of CoronaVac and BNT162b2 Vaccines Against Severe Acute Respiratory Syndrome Coronavirus 2 Omicron BA.2 Infections in Hong Kong.
机构信息
WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
Laboratory of Data Discovery for Health Limited, Hong Kong Science and Technology Park, New Territories, Hong Kong, China.
出版信息
J Infect Dis. 2022 Oct 17;226(8):1382-1384. doi: 10.1093/infdis/jiac360.
Abstract
There is limited evidence on vaccine effectiveness against asymptomatic or mild Omicron infections. We estimated that recent third doses of messenger RNA or inactivated vaccines reduced the risk of self-reported infection by 52% (95% confidence interval, 17%-73%) among randomly sampled adults during the Omicron BA.2-dominated surge in Hong Kong.
摘要
针对奥密克戎无症状或轻症感染，疫苗有效性的证据有限。我们估计，在香港奥密克戎 BA.2 主导的疫情期间，随机抽样的成年人接种信使 RNA 或灭活疫苗的最近第三针，将自述感染的风险降低了 52%（95%置信区间，17%-73%）。
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