Open AccessPre‐symptomatic transmission of novel coronavirus in community settings
Author(s) -
Kong Dechuan,
Zheng Yang,
Wu Huanyu,
Pan Hao,
Wagner Abram L.,
Zheng Yaxu,
Gong Xiaohuan,
Zhu Yiyi,
Jin Bihong,
Xiao Wenjia,
Mao Shenghua,
Lin Sheng,
Han Ruobing,
Yu Xiao,
Cui Peng,
Jiang Chenyan,
Fang Qiwen,
Lu Yihan,
Fu Chen
Publication year - 2020
Publication title -
influenza and other respiratory viruses
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.743
H-Index - 57
eISSN - 1750-2659
pISSN - 1750-2640
DOI - 10.1111/irv.12773
Subject(s) - interquartile range , incubation period , contact tracing , covid-19 , transmission (telecommunications) , medicine , comorbidity , incubation , coronavirus , demography , virology , biology , disease , outbreak , infectious disease (medical specialty) , computer science , biochemistry , sociology , telecommunications
We used contact tracing to document how COVID‐19 was transmitted across 5 generations involving 10 cases, starting with an individual who became ill on January 27. We calculated the incubation period of the cases as the interval between infection and development of symptoms. The median incubation period was 6.0 days (interquartile range, 3.5‐9.5 days). The last two generations were infected in public places, 3 and 4 days prior to the onset of illness in their infectors. Both had certain underlying conditions and comorbidity. Further identification of how individuals transmit prior to being symptomatic will have important consequences.