Table 1.
Characteristics of case cities.
| Permanent population (10,000 persons) | Pct. migrant population (%) | Pct. population in-flow from Wuhan in total Wuhan's out flow population1 (%) | Number of COVID-19 cases (as of March 19th 2020) | Number of COVID-19 cases (per 10, 000 persons) | Number of surveyed sub-districts | |
|---|---|---|---|---|---|---|
| Beijing | 2153.60 | 36.88 | 0.88 | 480 | 0.22 | 4 |
| Shanghai | 2428.14 | 40.13 | 0.67 | 371 | 0.15 | 5 |
| Guangzhou | 1530.59 | 64.90 | 0.50 | 359 | 0.24 | 3 |
| Shenzhen | 1343.88 | 62.80 | 0.49 | 427 | 0.33 | 2 |
| Wenzhou | 830.55 | 32.11 | 0.21 | 504 | 0.54 | 4 |
| Nanyang | 1003.16 | 0.35 | 0.69 | 156 | 0.16 | 2 |
Note: The migration data is from Baidu Map (http://qianxi.baidu.com/), which records traveling data from January 10th (the beginning of China's Spring Festival) to January 23rd (Wuhan's lockdown).