Abstract：
UNASSIGNED: No study has yet analyzed risk factors to determine whether students with confirmed coronavirus disease 2019 (COVID-19) infections may affect students at neighboring schools. Therefore, this study aimed to determine risk factors for COVID-19 transmission among schools within a community in the Republic of Korea.
UNASSIGNED: An epidemiological investigation was conducted among 696 students and school staff members at 3 schools where COVID-19 clusters began on October 15, 2021. Interviews, visit history surveys, a facility risk assessment, and closed-circuit television were used to identify risk factors. The statistical significance of risk factors was also evaluated.
UNASSIGNED: We confirmed 129 cases (18.5%) among the individuals exposed to COVID-19 at the 3 schools, many of whom had a history of visiting the same multi-use facilities. The odds ratio of having visited multi-use facilities such as karaoke rooms was 1.90 (95% confidence interval, 1.03-3.50); the number of visits to a karaoke room and the visit durations were significantly higher among confirmed cases than non-confirmed cases (p=0.02 and p=0.03, respectively).
UNASSIGNED: Having a history of visiting karaoke rooms often and spending a long time there were risk factors for COVID-19 infection and inter-school transmission. Thus, it is necessary to investigate the status of multi-use facilities frequently visited by adolescents and consider incorporating them into the scope of school quarantine to prevent infectious diseases at schools in a community.
UNASSIGNED: An epidemiological investigation was conducted among 696 students and school staff members at 3 schools where COVID-19 clusters began on October 15, 2021. Interviews, visit history surveys, a facility risk assessment, and closed-circuit television were used to identify risk factors. The statistical significance of risk factors was also evaluated.
UNASSIGNED: We confirmed 129 cases (18.5%) among the individuals exposed to COVID-19 at the 3 schools, many of whom had a history of visiting the same multi-use facilities. The odds ratio of having visited multi-use facilities such as karaoke rooms was 1.90 (95% confidence interval, 1.03-3.50); the number of visits to a karaoke room and the visit durations were significantly higher among confirmed cases than non-confirmed cases (p=0.02 and p=0.03, respectively).
UNASSIGNED: Having a history of visiting karaoke rooms often and spending a long time there were risk factors for COVID-19 infection and inter-school transmission. Thus, it is necessary to investigate the status of multi-use facilities frequently visited by adolescents and consider incorporating them into the scope of school quarantine to prevent infectious diseases at schools in a community.
摘要：
■尚未有研究分析风险因素，以确定确诊2019年冠状病毒病(COVID-19)感染的学生是否会影响邻近学校的学生。因此,本研究旨在确定大韩民国社区内学校之间COVID-19传播的危险因素.
对2021年10月15日开始COVID-19集群的3所学校的696名学生和学校工作人员进行了流行病学调查。面试,访问历史调查，设施风险评估，和闭路电视用于识别危险因素。还评估了危险因素的统计学意义。
■我们在3所学校的接触COVID-19的个体中确认了129例（18.5%），他们中的许多人都有参观过同样的多用途设施的历史。参观过卡拉OK室等多用途设施的赔率比为1.90(95%置信区间,1.03-3.50）；确诊病例中卡拉OK室的访问次数和访问持续时间明显高于未确诊病例（分别为p=0.02和p=0.03）。
■有经常光顾卡拉OK室的历史和花费的时间较长，是COVID-19感染和校际传播的危险因素。因此，有必要调查青少年经常光顾的多用途设施的状况，并考虑将其纳入学校检疫范围，以预防社区学校的传染病。
对2021年10月15日开始COVID-19集群的3所学校的696名学生和学校工作人员进行了流行病学调查。面试,访问历史调查，设施风险评估，和闭路电视用于识别危险因素。还评估了危险因素的统计学意义。
■我们在3所学校的接触COVID-19的个体中确认了129例（18.5%），他们中的许多人都有参观过同样的多用途设施的历史。参观过卡拉OK室等多用途设施的赔率比为1.90(95%置信区间,1.03-3.50）；确诊病例中卡拉OK室的访问次数和访问持续时间明显高于未确诊病例（分别为p=0.02和p=0.03）。
■有经常光顾卡拉OK室的历史和花费的时间较长，是COVID-19感染和校际传播的危险因素。因此，有必要调查青少年经常光顾的多用途设施的状况，并考虑将其纳入学校检疫范围，以预防社区学校的传染病。
