Volume 26, Number 11—November 2020
Research
Analysis of SARS-CoV-2 Transmission in Different Settings, Brunei
Liling Chaw
, Wee Chian Koh, Sirajul Adli Jamaludin, Lin Naing, Mohammad Fathi Alikhan, and Justin Wong
, Wee Chian Koh, Sirajul Adli Jamaludin, Lin Naing, Mohammad Fathi Alikhan, and Justin Wong
Table 3
Attack rates in different settings stratified by symptom status of the primary case of severe acute respiratory syndrome coronavirus 2, Brunei*
| Setting and symptom status | Total, n = 1,701 | Positive, n = 43 | Attack rate, % (95% CI) | Crude risk ratio (95% CI)† | p value |
|---|---|---|---|---|---|
| Household | |||||
| Asymptomatic or presymptomatic | 111 | 6 | 5.4 (1.2–9.6) | Referent | |
| Symptomatic |
153 |
22 |
14.4 (8.8–19.9) |
2.66 (1.12–6.34) |
0.027 |
| Nonhousehold‡ | |||||
| Asymptomatic or presymptomatic | 580 | 9 | 1.6 (0.5–2.6) | Referent | |
| Symptomatic |
857 |
6 |
0.7 (0.1–1.3) |
0.45 (0.16–1.26) |
0.129 |
| Overall | |||||
| Asymptomatic or presymptomatic | 691 | 15 | 2.2 (1.1–3.3) | Referent | |
| Symptomatic | 1,010 | 28 | 2.8 (1.8–3.8) | 1.28 (0.69–2.37) | 0.439 |
*Bold text indicates statistically significant value. † Calculated by using simple log-binomial regression. ‡Includes visits to relatives, workplace, and social settings. The local religious gathering is excluded because 3 primary cases at the event had varying symptom status and we could not ascertain how transmission occurred.
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Page updated: October 17, 2020
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