ArticleJMIR medical informatics2020
Nationwide Results of COVID-19 Contact Tracing in South Korea: Individual Participant Data From an Epidemiological Survey.
Article in JMIR medical informatics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.
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Who cites it
25 citing papers in PubMed, 1 synthesis or guideline pooled it, 58 citations in OpenAlex.
- Effectiveness of non-pharmaceutical public health interventions against COVID-19: A systematic review and meta-analysis.PloS one · 2021Pooled it
- Effects of Chest Mobilization and Breathing Exercises on Respiratory Function, Trunk Stability, and Endurance in Chronic Stroke Patients after Coronavirus Disease.Medicina (Kaunas, Lithuania) · 2023Trial
- Effects of Maitland Thoracic Joint Mobilization and Lumbar Stabilization Exercise on Diaphragm Thickness and Respiratory Function in Patients with a History of COVID-19.International journal of environmental research and public health · 2022Trial
- Enhancing time-varying reproduction number estimates for COVID-19 with behavior and surveillance data in South Korea, 2020-2022.Archives of public health = Archives belges de sante publique · 2026Article
- Nationwide Trends in Screen Time and Associated Risk Factors by Family Structures Among Adolescents, 2008-2022: Nationwide Cross-Sectional Study.JMIR public health and surveillance · 2025Article
- Psychosocial alterations during the COVID-19 pandemic and the global burden of anxiety and major depressive disorders in adolescents, 1990-2021: challenges in mental health amid socioeconomic disparities.World journal of pediatrics : WJP · 2024Review
- Effectiveness of probabilistic contact tracing in epidemic containment: The role of superspreaders and transmission path reconstruction.PNAS nexus · 2024Article
- Differential impacts of health systems and sociocultural environment on vulnerable populations during the COVID-19 pandemic: lessons from four Asia-Pacific countries.BMC public health · 2024Article
- Article
- National prevalence and trends in food labeling awareness, comprehension, usage, and COVID-19 pandemic-related factors in South Korea, 2014-2022.Scientific reports · 2024Article
- Article
- Trends in hypertension prevalence, awareness, treatment, and control in South Korea, 1998-2021: a nationally representative serial study.Scientific reports · 2023Article
- National trends in alcohol and substance use among adolescents from 2005 to 2021: a Korean serial cross-sectional study of one million adolescents.World journal of pediatrics : WJP · 2023Article
- Characteristics of Critically Ill COVID-19 Patients in Busan, Republic of Korea.Korean journal of family medicine · 2023Article
- Mathematical Modeling of COVID-19 Transmission and Intervention in South Korea: A Review of Literature.Yonsei medical journal · 2023Review
- Pilot Evaluation of Possible Airborne Transmission in a Geriatric Care Facility Using Carbon Dioxide Tracer Gas: Case Study.JMIR formative research · 2022Article
- "I can't do it": A qualitative study exploring case and contact experiences with COVID-19 contact tracing.BMC public health · 2022Article
- Effects of meteorological factors and air pollutants on the incidence of COVID-19 in South Korea.Environmental research · 2022Article
- Autoimmune inflammatory rheumatic diseases and COVID-19 outcomes in South Korea: a nationwide cohort study.The Lancet. Rheumatology · 2021Article
- Rhinovirus prevalence as indicator for efficacy of measures against SARS-CoV-2.BMC public health · 2021Article
Corrections and comments
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Authors and funding
11 authors at 8 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundEvidence regarding the effectiveness of contact tracing of COVID-19 and the related social distancing is limited and inconclusive.
objectiveThis study aims to investigate the epidemiological characteristics of SARS-CoV-2 transmission in South Korea and evaluate whether a social distancing campaign is effective in mitigating the spread of COVID-19.
methodsWe used contract tracing data to investigate the epidemic characteristics of SARS-CoV-2 transmission in South Korea and evaluate whether a social distancing campaign was effective in mitigating the spread of COVID-19. We calculated the mortality rate for COVID-19 by infection type (cluster vs noncluster) and tested whether new confirmed COVID-19 trends changed after a social distancing campaign.
resultsThere were 2537 patients with confirmed COVID-19 who completed the epidemiologic survey: 1305 (51.4%) cluster cases and 1232 (48.6%) noncluster cases. The mortality rate was significantly higher in cluster cases linked to medical facilities (11/143, 7.70% vs 5/1232, 0.41%; adjusted percentage difference 7.99%; 95% CI 5.83 to 10.14) and long-term care facilities (19/221, 8.60% vs 5/1232, 0.41%; adjusted percentage difference 7.56%; 95% CI 5.66 to 9.47) than in noncluster cases. The change in trends of newly confirmed COVID-19 cases before and after the social distancing campaign was significantly negative in the entire cohort (adjusted trend difference -2.28; 95% CI -3.88 to -0.68) and the cluster infection group (adjusted trend difference -0.96; 95% CI -1.83 to -0.09).
conclusionsIn a nationwide contact tracing study in South Korea, COVID-19 linked to medical and long-term care facilities significantly increased the risk of mortality compared to noncluster COVID-19. A social distancing campaign decreased the spread of COVID-19 in South Korea and differentially affected cluster infections of SARS-CoV-2.
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