Household secondary attack rate of COVID-19 and associated determinants in Guangzhou, China: a retrospective cohort study

Auteurs : Qin-Long Jing, Ming-Jin Liu, Zhou-Bin Zhang, Li-Qun Fang, Jun Yuan, An-Ran Zhang, Natalie E Dean, Lei Luo, Meng-Meng Ma, Ira Longini, Eben Kenah, Ying Lu, Yu Ma, Neda Jalali, Zhi-Cong Yang, Yang Yang

Production : Revue The Lancet

Diffusion : le site de la revue The Lancet

Date : 17 juin 2020

As of June 8, 2020, the global reported number of COVID-19 cases had reached more than 7 million with over 400 000 deaths. The household transmissibility of the causative pathogen, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), remains unclear. We aimed to estimate the secondary attack rate of SARS-CoV-2 among household and non-household close contacts in Guangzhou, China, using a statistical transmission model.

Source : Qin-Long Jing, Ming-Jin Liu, Zhou-Bin Zhang et al., “Household secondary attack rate of COVID-19 and associated determinants in Guangzhou, China: a retrospective cohort study”, The Lancet, 17/06/2020. DOI : https://doi.org/10.1016/S1473-3099(20)30471-0 (consulté le 22/06/2020).

Photo “à la une” : Figure 1, Spatial distribution of COVID-19 case clusters on the basis of contact tracing data from Guangzhou, China, from Jan 7, 2020, to Feb 18, 2020 @ DR / The Lancet / Elsevier Ltd


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