Asymptomatic SARS Coronavirus 2 infection: Invisible yet invincible

被引:158
|
作者
Nikolai, Lea A. [1 ]
Meyer, Christian G. [1 ,2 ,3 ]
Kremsner, Peter G. [1 ,4 ]
Velavan, Thirumalaisamy P. [1 ,2 ,3 ]
机构
[1] Univ Tubingen, Inst Trop Med, Wilhelmstr 27, D-72074 Tubingen, Germany
[2] Vietnamese German Ctr Med Res, Hanoi, Vietnam
[3] Duy Tan Univ, Fac Med, Da Nang, Vietnam
[4] Ctr Rech Med Lambarene, Lambarene, Gabon
关键词
Asymptomatic; Presymptomatic; Case definition; COVID-19; SARS-CoV-2; Herd immunity; SARS-COV-2; COVID-19; CARRIERS;
D O I
10.1016/j.ijid.2020.08.076
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
While successful containment measures of COVID-19 in China and many European countries have led to flattened curves, case numbers are rising dramatically in other countries, with the emergence of a second wave expected. Asymptomatic individuals carrying SARS-CoV-2 are hidden drivers of the pandemic, and infectivity studies confirm the existence of transmission by asymptomatic individuals. The data addressed here show that characteristics of asymptomatic and presymptomatic infection are not identical. Younger age correlates strongly with asymptomatic and mild infections and children as hidden drivers. The estimated proportion of asymptomatic infections ranges from 18% to 81%. The current perception of asymptomatic infections does not provide clear guidance for public-health measures. Asymptomatic infections will be a key contributor in the spread of COVID-19. Asymptomatic cases should be reported in official COVID-19 statistics. (C) 2020 The Author(s). Published by Elsevier Ltd on behalf of International Society for Infectious Diseases.
引用
收藏
页码:112 / 116
页数:5
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