Alliance for Pandemic Preparedness

February 24, 2020

Notes from the Field: Investigation of a Cluster of 2019 Novel Coronavirus Disease (COVID-19) with Possible Transmission During the Incubation Period — Shenyang City, China, 2020

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  • Transmission patterns within a small family cluster of COVID-19 cases suggest probably asymptomatic transmission from one person who travelled to Wuhan to other family members. 

Wang et al. (Feb 21, 2020). Notes from the Field: Investigation of a Cluster of 2019 Novel Coronavirus Disease (COVID-19) with Possible Transmission During the Incubation Period — Shenyang City, China, 2020. China CDC Weekly. http://weekly.chinacdc.cn/en/article/id/78001560-6f5f-4bd3-a9ad-149f7c453923