Epidemiological characteristics of the B.1.526 SARS-CoV-2 variant.

Epidemiological characteristics of the B.1.526 SARS-CoV-2 variant.
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B.1.526 SARS-COV-2变体的流行病学特征。

DOI:
10.1126/sciadv.abm0300
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发表时间:
2022-01-28
期刊:
影响因子:
13.6
通讯作者:
Fine A
Fine A
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Yang W;Greene SK;Peterson ER;Li W;Mathes R;Graf L;Lall R;Hughes S;Wang J;Fine A

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为了描述B.1.526 SARS-CoV-2(严重急性呼吸综合征冠状病毒2型)变异体的流行病学特征,我们使用了9个流行病学和人口数据集以及模型推断方法来重建B.1.526出现的纽约市的SARS-CoV-2传播动力学。我们估计,B.1.526的传播性中度增加(15%至25%),可以在0至10%的既往感染者中逃避免疫力,并在2020年11月至2021年4月期间将65岁或以上成年人的感染死亡风险(IFR)大幅增加>60%,与先前存在的变体估计值相比。总的来说,研究结果表明,像B.1.526这样的新变体可能在检测前几周就在人群中传播,并且部分免疫逃逸(例如,对治疗性抗体的耐药性)可能抵消先前的医学进步并增加IFR。因此,对SARS-CoV-2变体、其流行病学特征和疾病严重程度的早期准备和密切监测对于COVID-19(2019冠状病毒病)应对至关重要。这项工作表征了B.1.526 SARS-CoV-2变异体的流行病学特性。
To characterize the epidemiological properties of the B.1.526 SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) variant of interest, here we used nine epidemiological and population datasets and model-inference methods to reconstruct SARS-CoV-2 transmission dynamics in New York City, where B.1.526 emerged. We estimated that B.1.526 had a moderate increase (15 to 25%) in transmissibility, could escape immunity in 0 to 10% of previously infected individuals, and substantially increased the infection fatality risk (IFR) among adults 65 or older by >60% during November 2020 to April 2021, compared to estimates for preexisting variants. Overall, findings suggest that new variants like B.1.526 likely spread in the population weeks before detection and that partial immune escape (e.g., resistance to therapeutic antibodies) could offset prior medical advances and increase IFR. Early preparedness for and close monitoring of SARS-CoV-2 variants, their epidemiological characteristics, and disease severity are thus crucial to COVID-19 (coronavirus disease 2019) response. This work characterizes the epidemiological properties of the B.1.526 SARS-CoV-2 variant of interest.
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影响因子: 11.1
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影响因子: 15.8
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