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- Title
Epidemiologic Characteristics of a COVID-19 Outbreak Caused by Religious Activities in Daegu, Korea.
- Authors
Jong-Yeon Kim; Yu-Mi Lee; Hwajin Lee; Jung-Whan Kim; Shin-Woo Kim; Kim, Jong-Yeon; Lee, Yu-Mi; Lee, Hwajin; Kim, Jung-Whan; Kim, Shin-Woo
- Abstract
<bold>Objectives: </bold>A coronavirus disease (COVID-19) outbreak triggered by religious activities occurred in Daegu, South Korea in February 2020. This outbreak spread rapidly to the community through high-risk groups. This study describes the characteristics of the COVID-19 cases based on S religious group membership and summarizes Daegu City's processes and responses to control the outbreak.<bold>Methods: </bold>Epidemiologic characteristics of confirmed cases were obtained through basic and in-depth epidemiological surveys. General characteristics, asymptomatic proportion, case-fatality rates, and time-to-event within each group were presented after stratifying confirmed cases according to S religious group membership.<bold>Results: </bold>Overall, 7,008 COVID-19 cases were confirmed in Daegu from February 18 to June 30, 2020, and 61.5% (n=4,309) were S religious group members. Compared with non-members, members had a higher proportion of women (p<0.001), younger age (p<0.001), and lower disease prevalence. Asymptomatic cases included 38.4% of members and 23.7% of non-members (p<0.001) at the time of the investigation. The case-fatality rate of non-members aged ≥60 years was significantly higher than that of members (p<0.001). Compared with non-members, the durations of symptom onset to diagnosis (p<0.001) and diagnosis to admission (p<0.001) of members were longer, whereas the duration of admission to discharge (p<0.001) was shorter.<bold>Conclusion: </bold>The epidemiologic features of S religious group members, including asymptomatic proportion, case-fatality rate, and time-to-event, differed from non-members. Daegu City prevented further spread of COVID-19 through immediate isolation and active screening tests of all S religious group members.
- Publication
Epidemiology & Health, 2021, Vol 43, p1
- ISSN
2092-7193
- Publication type
journal article
- DOI
10.4178/epih.e2021024