Volume 26, Number 10—October 2020
Dispatch
Effect of Nonpharmaceutical Interventions on Transmission of Severe Acute Respiratory Syndrome Coronavirus 2, South Korea, 2020
Sukhyun Ryu
, Seikh Taslim Ali, Cheolsun Jang, Baekjin Kim, and Benjamin J. Cowling
, Seikh Taslim Ali, Cheolsun Jang, Baekjin Kim, and Benjamin J. Cowling
Table
Demographic characteristics of 2,023 persons with confirmed cases of coronavirus disease, from publicly available data, South Korea, outside of Daegu-Gyeongsangbuk provincial region on April 21, 2020*
| Characteristic | All, no. (%) | Period 1, no. (%)† | Period 2, no. (%)‡ |
|---|---|---|---|
| Age group, y |
|||
| 0–19 |
123 (6) |
11 (5) |
112 (6) |
| 20–39 |
715 (35) |
104 (50) |
611 (34) |
| 40–59 |
619 (31) |
50 (24) |
569 (31) |
| 60–79 |
295 (15) |
37 (18) |
258 (14) |
| >80y |
50 (3) |
6 (3) |
44 (2) |
| Unknown |
221 (11) |
0 |
221(12) |
| Sex |
|||
| M |
820 (41) |
107 (56) |
713 (39) |
| F |
953 (47) |
100 (43) |
853 (47) |
| Unknown |
250 (12) |
1 (1) |
249 (14) |
| Type of transmission§ |
|||
| Local |
892 (44) |
116 (55) |
776 (43) |
| Imported from Daegu-Gyeongsangbuk |
155 (8) |
65 (31) |
90 (5) |
| Imported from abroad |
552 (27) |
16 (8) |
536 (30) |
| Cases occurring in large clusters | 424 (21) | 11 (5) | 413 (23) |
*Assignment to period was based on date of symptom onset. If cases were asymptomatic or date of symptom onset date was not reported, we used the date of case confirmation.
†Jan 20–Feb 23, 2020; n = 208.
‡Feb 24–Apr 21, 2020; n = 1,815.
§Source of infection is provided for all cases; if not identified, we considered the case to have occurred by local transmission.
Page created: June 02, 2020
Page updated: September 17, 2020
Page reviewed: September 17, 2020
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