Table 3.
Numbers of suspected cases, close contacts, and people under medical observation from January 1 to March 15
| Date | New suspected cases | Total suspected cases | New close contacts | Total close contacts | People under medical obeservation5 |
| January 21-22 | 13 | 13 | 94 | 94 | 83 |
| January 23-291,2 | 622 | 635 | 3525 | 3619 | 1381 |
| January 30-February 5 | 1246 | 1881 | 8081 | 11700 | 5949 |
| February 6-123,4 | 1128 | 3009 | 7225 | 18925 | 6980 |
| February 13-19 | 510 | 3519 | 3775 | 22700 | 4403 |
| February 20-26 | 105 | 3624 | 741 | 23441 | 1211 |
| February 27- March 4 | 25 | 3649 | 171 | 23612 | 416 |
| March 5-11 | 6 | 3655 | 69 | 23681 | 185 |
| March 12-15 | 0 | 3655 | 35 | 23716 | 77 |
1
January 23, 2020: The lockdown of Wuhan.
2
January 24, 2020: Initiated the first-level response to major public health emergencies.
3
February 6, 2020: Released the prevention and control plan of COVID-19 (Third Edition).
4
February 7, 2020: Implemented the closed management of residential communities.
5
Mean (weekly).