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Volume 26, Number 11—November 2020

Analysis of SARS-CoV-2 Transmission in Different Settings, Brunei

Liling ChawComments to Author , Wee Chian Koh, Sirajul Adli Jamaludin, Lin Naing, Mohammad Fathi Alikhan, and Justin Wong
Author affiliations: Universiti Brunei Darussalam, Jalan Tungku Link, Brunei (L. Chaw, L. Naing); Centre for Strategic and Policy Studies, Jalan Pasar Baru Gadong, Brunei (W.C. Koh); Ministry of Health, Bandar Seri Begawan, Brunei (S.A. Jamaludin, M.F. Alikhan, J. Wong)

Main Article

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
Asymptomatic or presymptomatic 111 6 5.4 (1.2–9.6) Referent
14.4 (8.8–19.9)
2.66 (1.12–6.34)
Asymptomatic or presymptomatic 580 9 1.6 (0.5–2.6) Referent
0.7 (0.1–1.3)
0.45 (0.16–1.26)
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.

Main Article

Page created: August 17, 2020
Page updated: October 17, 2020
Page reviewed: October 17, 2020
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