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2020年德国新冠病毒疫情中无症状和症状前传播情况分析

Analysis of Asymptomatic and Presymptomatic Transmission in SARS-CoV-2 Outbreak, Germany, 2020.

作者信息

Bender Jennifer K, Brandl Michael, Höhle Michael, Buchholz Udo, Zeitlmann Nadine

出版信息

Emerg Infect Dis. 2021 Apr;27(4):1159-63. doi: 10.3201/eid2704.204576. Epub 2021 Feb 18.

DOI:10.3201/eid2704.204576
PMID:33600301
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8007320/
Abstract

We determined secondary attack rates (SAR) among close contacts of 59 asymptomatic and symptomatic coronavirus disease case-patients by presymptomatic and symptomatic exposure. We observed no transmission from asymptomatic case-patients and highest SAR through presymptomatic exposure. Rapid quarantine of close contacts with or without symptoms is needed to prevent presymptomatic transmission.

摘要

我们通过症状前和症状期暴露情况，确定了59例无症状和有症状冠状病毒病病例密切接触者的二代发病率（SAR）。我们观察到无症状病例未发生传播，且通过症状前暴露的二代发病率最高。需要对有症状或无症状的密切接触者进行快速隔离，以防止症状前传播。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/efaa/8007320/26a6b162986b/20-4576-F.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/efaa/8007320/26a6b162986b/20-4576-F.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/efaa/8007320/26a6b162986b/20-4576-F.jpg

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