Table 1. Results of contact investigation of a patient with an imported case of Middle East respiratory syndrome coronavirus infection, China, 2015.
Category | Contacts, no. (%), N = 110 | Close contacts,* no. (%), n = 44 | Common contacts, no. (%), n = 66 |
---|---|---|---|
Sex | |||
M | 59 (54) | 34 (77) | 25 (38) |
F |
51 (46) |
10 (23) |
41 (62) |
Age group, y | |||
17–29 | 39 (35) | 10 (23) | 29 (44) |
30–59 | 66 (60) | 30 (68) | 36 (55) |
60–70 |
5 (5) |
4 (9) |
1 (2) |
Tracing approach | |||
Personal interview | 48 (44) | 15 (34) | 33 (50) |
Hotline | 28 (25) | 18 (41) | 10 (15) |
Video reviewing |
34 (31) |
11 (25) |
23 (35) |
Contacts | |||
Air travel | 27 (25) | 6 (14) | 21 (32) |
Land travel | 24 (22) | 24 (54) | 0 |
Community |
59 (54) |
14 (32) |
45 (68) |
Management† | |||
Quarantine in designated facility | 89 (84) | 40 (100) | 49 (74) |
Self-monitoring at home |
17 (16) |
0 |
17 (26) |
Symptoms† | |||
Symptomatic | 3 (3) | 2 (5) | 1 (2) |
Asymptomatic | 103 (97) | 38 (95) | 65 (98) |
*Close contacts include 2 from Taiwan and 2 from South Korea that returned to their countries before they were identified. We notified local health authorities about these 4 contacts. †Numbers and percentages for contacts and close contacts exclude 4 contacts who left mainland China before they were identified.