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Fig. 1 | BMC Infectious Diseases

Fig. 1

From: Evaluation of China’s Hubei control strategy for COVID-19 epidemic: an observational study

Fig. 1

Geographical distribution of the risk of COVID-19 importation to each prefecture and their response timing. a Fluxes of population outflow from Wuhan, represented by dBMIs, during period of 1 January to 29 February in 2019 and 2020. The vertical lines in grey and red represent the dates of Wuhan lockdown and Chinese Lunar New Year, respectively. dBMI daily Baidu Mobility Index. b Spatial distribution of COVID-19 importation risk, measured by their aggregate population inflow from Wuhan until 26 January 2020. Provincial inflow from Wuhan was plotted at the upper left corner and municipal inflow in Hubei plotted at the lower right corner. The black area is Wuhan city. c Governments’ response timing in each prefecture. The dates to raise provincial public health response to Level One for COVID-19 control were plotted using different colors (upper left). Similarly, time to execute city shutdown in Hubei was plotted (lower right). d The importation risk distribution grouped by governments’ response. Samples with insufficient size at the response timing were excluded, such as Qinghai, Tibet and Xiangyang

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