Health Data Science / 2021 / Article / Fig 3

Research Article

Mobile Phone-Based Population Flow Data for the COVID-19 Outbreak in Mainland China

Figure 3

Spatial distribution of the number of diagnosed cases and thermodynamic chart of outbound flows from Wuhan to destinations at the district (county) level across mainland China. (a) Distribution of diagnosed cases in each province, with cities in Hubei province highlighted above; (b) volume of outbound flows from Wuhan between January 1 and 22, 2020. Hubei province is presented at the top of the figure.