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Characteristics of COVID-19 outbreaks and risk factors for transmission at an army training center in South Korea from June to August 2021
U Jin Cho, Seongjin Wang, Seonju Yi, Yeon Hwa Choi, Eun-Young Kim, Jin A Kim, Sanghwan Bae, Jungyeon Yu, Jangkyu Choi, Young-Joon Park
Osong Public Health Res Perspect. 2022;13(4):263-272.   Published online July 27, 2022
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  • 119 Download
  • 2 Web of Science
  • 2 Crossref
AbstractAbstract PDF
It is crucial to establish the characteristics of coronavirus disease 2019 (COVID-19) outbreaks at army training centers to develop preventive measures. Therefore, this study aimed to determine the COVID-19 transmission patterns and risk factors in a sequence of outbreaks at an army training center from June to August 2021.
This study included 1,324 trainees at an army training center where outbreaks occurred from June to August 2021. The outbreak was qualitatively analyzed according to the period, attack rate, demographic characteristics, vaccination history, and living areas. An aerodynamic experiment was performed to evaluate aerosol transmission in living areas.
Three outbreaks occurred at the army training center from June to August 2021. The first, second, and third outbreaks lasted for 32, 17, and 24 days, and the attack rates were 12.8%, 18.1%, and 8.9%, respectively. Confirmed cases were distributed in all age groups. Recruits and the unvaccinated were at higher risk for COVID-19. The aerodynamic experiment verified the possibility of aerosol transmission within the same living area.
COVID-19 transmission at army training centers should be minimized through quarantine and post-admission testing during the latency period as part of integrated measures that include facility ventilation, vaccination, indoor mask-wearing, and social distancing.


Citations to this article as recorded by  
  • COVID-19 outbreak in a religious village community in Republic of Korea and risk factors for transmission
    Jiae Shim, Eunju Lee, Eunyoung Kim, Yeonhwa Choi, Giseok Kang, Bryan Inho Kim
    Osong Public Health and Research Perspectives.2023; 14(2): 110.     CrossRef
  • Epidemiological Characteristics of a COVID-19 Outbreak in a Psychiatric Hospital in Chung-buk
    Se-Hyuk Jang, Young-Joon Park, Ji-Joo Lee, Woo-Jin Jung
    Healthcare.2023; 11(16): 2332.     CrossRef
Distribution of Pathogenic Vibrio Species in the Coastal Seawater of South Korea (2017–2018)
Seung Hun Lee, Hee Jung Lee, Go Eun Myung, Eun Jin Choi, In A Kim, Young Il Jeong, Gi Jun Park, Sang Moon Soh
Osong Public Health Res Perspect. 2019;10(6):337-342.   Published online December 31, 2019
  • 5,620 View
  • 180 Download
  • 10 Crossref
AbstractAbstract PDF

Pathogenic Vibrio species are widely distributed in warm estuarine and coastal environments, and can infect humans through the consumption of raw or mishandled contaminated seafood and seawater. For this reason, the distribution of these bacteria in South Korea was investigated.


Seawater samples were collected from 145 coastal area points in the aquatic environment in which Vibrio species live. Environmental data (i.e., water temperature, salinity, turbidity, and atmospheric temperature) was collected which may help predict the distribution of the species (data not shown). Seawater samples were filtered, and incubated overnight in alkaline peptone water, at 37°C. Using species-specific polymerase chain reaction methods, screening tests were performed for the hlyA, ctxA, vvhA, and tlh genes. Clones of pathogenic Vibrio species were isolated using 3 selective plating media.


In 2017, total seawater isolation rates for Vibrio vulnificus, Vibrio cholerae (non-pathogenic, non-O1, non-O139 serogroups), and Vibrio parahaemolyticus were 15.82%, 13.18%, 65.80%, respectively. However, in 2018 isolation rates for each were 21.81%, 19.40%, and 70.05%, respectively.


The isolation rates of pathogenic Vibrio species positively correlated with the temperature of seawater and atmosphere, but negatively correlated with salinity and turbidity. From 2017 to 2018, the most frequent seawater-isolated Vibrio species were V. parahaemolyticus (68.10 %), V. vulnificus (16.54%), and non-toxigenic V. cholerae (19.58%). Comprehensive monitoring, prevention, and control efforts are needed to protect the public from pathogenic Vibrio species.


Citations to this article as recorded by  
  • Bacterial biocontrol of vibriosis in shrimp: A review
    Esti Harpeni, Alim Isnansetyo, Indah Istiqomah, Murwantoko
    Aquaculture International.2024;[Epub]     CrossRef
  • Design of a multi-epitope vaccine (vme-VAC/MST-1) against cholera and vibriosis based on reverse vaccinology and immunoinformatics approaches
    Pedro Henrique Marques, Thais Cristina Vilela Rodrigues, Eduardo Horta Santos, Lucas Bleicher, Flavia Figueira Aburjaile, Flaviano S. Martins, Carlo Jose Freire Oliveira, Vasco Azevedo, Sandeep Tiwari, Siomar Soares
    Journal of Biomolecular Structure and Dynamics.2023; : 1.     CrossRef
  • Nested Spatial and Temporal Modeling of Environmental Conditions Associated With Genetic Markers of Vibrio parahaemolyticus in Washington State Pacific Oysters
    Brendan Fries, Benjamin J. K. Davis, Anne E. Corrigan, Angelo DePaola, Frank C. Curriero
    Frontiers in Microbiology.2022;[Epub]     CrossRef
  • Spatial and temporal effects of fish feed on antibiotic resistance in coastal aquaculture farms
    Shahbaz Raza, Sangki Choi, Minjeong Lee, Jingyeong Shin, Heejong Son, Jinhua Wang, Young Mo Kim
    Environmental Research.2022; 212: 113177.     CrossRef
  • An Assay Combining Droplet Digital PCR With Propidium Monoazide Treatment for the Accurate Detection of Live Cells of Vibrio vulnificus in Plasma Samples
    Ling Hu, Yidong Fu, Shun Zhang, Zhilei Pan, Jiang Xia, Peng Zhu, Jing Guo
    Frontiers in Microbiology.2022;[Epub]     CrossRef
  • Seasonal variation, virulence gene and antibiotic resistance of Vibrio in a semi-enclosed bay with mariculture (Dongshan Bay, Southern China)
    Qiancheng Gao, Xiaowan Ma, Zhichao Wang, Haisheng Chen, Yu Luo, Bi Wu, Shanni Qi, Miaozhen Lin, Jing Tian, Ying Qiao, Hans-Peter Grossart, Wei Xu, Lixing Huang
    Marine Pollution Bulletin.2022; 184: 114112.     CrossRef
  • Molecular Epidemiology of Antimicrobial Resistance and Virulence Profiles of Escherichia coli, Salmonella spp., and Vibrio spp. Isolated from Coastal Seawater for Aquaculture
    Saharuetai Jeamsripong, Varangkana Thaotumpitak, Saran Anuntawirun, Nawaphorn Roongrojmongkhon, Edward R. Atwill, Woranich Hinthong
    Antibiotics.2022; 11(12): 1688.     CrossRef
  • Meteorological and Water Quality Factors Associated with Microbial Diversity in Coastal Water from Intensified Oyster Production Areas of Thailand
    Saharuetai Jeamsripong, Varangkana Thaotumpitak, Saran Anuntawirun, Nawaphorn Roongrojmongkhon, Edward R. Atwill
    Water.2022; 14(23): 3838.     CrossRef
  • Predictive models for the effect of environmental factors on the abundance of Vibrio parahaemolyticus in oyster farms in Taiwan using extreme gradient boosting
    Nodali Ndraha, Hsin-I Hsiao, Yi-Zeng Hsieh, Abani K. Pradhan
    Food Control.2021; 130: 108353.     CrossRef
  • Prevalence, detection of virulence genes and antimicrobial susceptibility of pathogen Vibrio species isolated from different types of seafood samples at “La Nueva Viga” market in Mexico City
    Ana Karen Álvarez-Contreras, Elsa Irma Quiñones-Ramírez, Carlos Vázquez-Salinas
    Antonie van Leeuwenhoek.2021; 114(9): 1417.     CrossRef

PHRP : Osong Public Health and Research Perspectives