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논문 기본 정보

자료유형
학술저널
저자정보
Kim Jong-yeon (Department of Public Health Kyungpook National University Hospital Daegu Korea.) Lee Yu-Mi (Department of Preventive Medicine School of Medicine Kyungpook National University Daegu Korea.) 이화진 (Department of Preventive Medicine School of Medicine Kyungpook National University) 김정환 (Department of Preventive Medicine School of Medicine Kyungpook National University) Shin-Woo Kim (Department of Internal Medicine Kyungpook National University Hospital Daegu Korea)
저널정보
한국역학회 Epidemiology and Health Epidemiology and Health Vol.43
발행연도
2021.1
수록면
1 - 9 (9page)

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OBJECTIVES: A coronavirus disease 2019 (COVID-19) outbreak triggered by religious activities occurred in Daegu, Korea in February 2020. This outbreak spread rapidly to the community through high-risk groups. This study describes the characteristics of COVID-19 cases based on S religious group membership and summarizes the Daegu municipal government’s processes and responses to control the outbreak. METHODS: The epidemiological characteristics of confirmed cases were obtained through basic and in-depth epidemiological surveys. General characteristics, the proportion of asymptomatic cases, the case-fatality rate, and the time-to-event within each group were presented after stratifying confirmed cases according to S religious group membership. RESULTS: Overall, 7,008 COVID-19 cases were confirmed in Daegu from February 18, 2020 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 female (p<0.001) and younger age (p<0.001), as well as lower disease prevalence. At the time of the investigation, 38.4% of cases in members were asymptomatic versus 23.7% of cases in non-members (p<0.001). The case-fatality rate of non-members aged ≥60 years was significantly higher than that of members (p<0.001). Compared with non-members, members had longer intervals from symptom onset to diagnosis (p<0.001) and from diagnosis to admission (p<0.001), and a shorter interval from admission to discharge (p<0.001). CONCLUSIONS: The epidemiological features of S religious group members, including the proportion of asymptomatic cases, case-fatality rate, and time-to-event, differed from non-members. The Daegu authorities prevented further COVID-19 spread through immediate isolation and active screening tests of all S religious group members.

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