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COVID-19: Epidemiologic Investigation
- Analysis of the on-ship transmission of the COVID-19 mass outbreak on the Republic of Korea Navy amphibious warfare ship
- Soo Hyeon Cho, Young-Man Kim, Gyeongyong Seong, Sunkyun Park, Seoncheol Park, Sang-Eun Lee, Young Joon Park
- Epidemiol Health. 2022;44:e2022065. Published online August 11, 2022
- DOI: https://doi.org/10.4178/epih.e2022065
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- 1 Web of Science
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Abstract
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AbstractOBJECTIVES
This investigation was conducted to determine the size and pattern, source, and transmission route of the coronavirus disease 2019 (COVID-19) outbreak on the Republic of Korea Navy (ROKN) amphibious warfare ship.METHODSWe investigated the characteristics of all crew members and tracked the medical records of the confirmed cases. Fourteen essential ship operation personnel were interviewed. The study design was a retrospective cohort study, and the incidence rate ratio was through a statistical program.RESULTSThe COVID-19 incidence on the ROKN amphibious warfare ship was 44.7% (38/85). It was estimated that the main propagation route started from the 1st floor worker, which spread to the same floor, and then to other floors. In the case of the working area, the incidence rate of crew members below the 1st floor without ventilation was higher than those on the 2nd or higher floors with natural ventilation.CONCLUSIONSThis case is the first case of a COVID-19 outbreak on the ROKN amphibious warfare ship, and it is estimated that the incidence rate is high because of the closed and dense environment. To prevent the spread of various respiratory diseases including COVID-19, unified mitigation such as vaccination, observing personal quarantine rules, periodic ventilation, preemptive testing, and blocking transmission through prompt contact management is necessary. -
SummaryKorean summary
본 조사는 국내 첫 해군 상륙함 내 코로나19 집단발생의 규모 및 양상, 감염원과 전파경로를 규명하기 위해 수행되었다. 해군 상륙함에서의 발생률은 44.7%였으며 자연 환기가 가능한 2층 이상 근무자에 비해 환기가 불가능한 1층 이하 근무자의 발생률이 높았고 이는 통계적으로 유의했다. 밀폐된 환경에서 밀접한 생활을 하는 해군 상륙함의 특성을 고려하여 개인방역수칙 준수, 주기적 환기, 선제적 검사, 신속한 접촉자 관리 등을 통한 전파 차단이 필요할 것으로 판단된다.Key Message
This investigation was conducted to determine the size and pattern of the outbreak of the COVID-19 infection, the source of infection and the transmission route on the ROK Navy Amphibious Warfare ship. The incidence on ROKN Amphibious Warfare ship was 44.7% (38/85) and the incidence rate of crew members below the first floor without ventilation was higher than those on the second floor or higher with natural ventilation. To prevent various respiratory diseases including COVID-19, unified mitigation such as vaccination, observing personal quarantine rules, periodic ventilation, preemptive testing, and blocking transmission through prompt contact management is necessary. -
Citations
Citations to this article as recorded by
- Indoor Air Quality and COVID-19: A Scoping Review
Axelle Braggion, Adeline Dugerdil, Olwen Wilson, Francesca Hovagemyan, Antoine Flahault
Public Health Reviews.2024;[Epub] CrossRef
- Indoor Air Quality and COVID-19: A Scoping Review
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