Early Transmission Dynamics in Wuhan, China, of Novel Coronavirus–Infected Pneumonia

• Data-collection: Information was collected on demographic characteristics, exposure history, and illness timelines of laboratory-confirmed cases of Novel Coronavirus Infected Pneumonia (NCIP) that had been reported by January 22, 2020. They described characteristics of the cases and estimated the key epidemiologic time-delay distributions. In the early period of exponential growth, we estimated the epidemic doubling time and the basic reproductive number.

Estimation of the Transmission Risk of the 2019-nCoV and Its Implication for Public Health Interventions

• Data-collection: Labratory confirmed cases of COVID-19 in mainland China from the WHO situation report, the National Health Commission of the People’s Republic of China, the Health Commission of Wuhan City and Hubei Province.