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COVID-19: Original Article
Body mass index and prevalence of metabolic syndrome among Korean adults before and after the COVID-19 outbreak: a retrospective longitudinal study
Joo-Eun Jeong, Hoon-Ki Park, Hwan-Sik Hwang, Kye-Yeung Park, Myoung-Hye Lee, Seon-Hi Shin, Nayeon Choi
Epidemiol Health. 2023;45:e2023081.   Published online August 29, 2023
DOI: https://doi.org/10.4178/epih.e2023081
  • 5,259 View
  • 122 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Studies evaluating weight changes during the coronavirus disease 2019 (COVID-19) pandemic have yielded inconsistent results, and most of those studies were based on self-reported anthropometric measures. We investigated changes in body mass index (BMI), professionally measured waist circumference (WC), and metabolic syndrome components from before to during the pandemic in a sample of the adult population in Korea.
METHODS
This retrospective study included 1,118 male and female (age≥18 years) who underwent health checkups at a university medical center between January 1, 2016 and March 31, 2022. Changes in BMI, lifestyles, and metabolic syndrome components during the pandemic were analyzed using the paired t-test, McNemar test, generalized estimating equations, and repeated-measures analysis of variance.
RESULTS
Changes in body weight, BMI, and body fat percentage during the pandemic were not clinically significant. However, statistically significant results were found for decreased physical activity (p<0.001) and WC (p<0.001), and exacerbation of all metabolic syndrome components (except serum triglyceride levels). Moreover, the metabolic syndrome prevalence increased significantly from 20.2% to 31.2% during the pandemic (p<0.001). The prevalence of abdominal obesity and high fasting blood glucose levels also significantly increased from 2019 to 2021.
CONCLUSIONS
Metabolic syndrome, its components, and fat distribution worsened significantly after the implementation of social distancing and lockdowns, despite no clinically significant changes in body weight and BMI. Further studies on the post- pandemic period should investigate the long-term impact of social lockdowns on BMI and the prevalence of metabolic syndrome.
Summary
Korean summary
본 연구에서는 한국인 성인들의 코로나 팬대믹으로 인한 사회적 거리 두기, 봉쇄 정책 전 후의 체질량지수, 생활습관, 그리고 대사증후군과 그 구성 요소들의 변화를 건강검진을 통해 측정한 객관적인 지표의 변화를 통해 알아보고자 하였다. 연구 결과, 사회적 거리 두기 및 봉쇄 전후의 체질량지수와 체중은 유의미한 변화가 없었으나, 신체 활동량은 유의미하게 감소하였고, 체지방률, 허리둘레가 늘어났다. 그리고 중성지방을 제외하고 다른 대사증후군의 구성 요소인 혈압, 고밀도지단백 콜레스테롤, 공복혈당 지표는 악화되었다. 하위 그룹 분석에서 매년 검진을 시행 받은 대상자들 및 고혈압, 당뇨병, 이상지질혈증 약을 복용하지 않는 대상자들의 코로나-19 전후 연도별 대사 지표의 변화를 분석한 결과, 복부비만 유병률과 공복 혈당의 증가 양상이 뚜렷하였다.
Key Message
Although there was no significant change in BMI and weight, the prevalence of metabolic syndrome, abdominal obesity, and fasting blood glucose level prominently worsened after the implementation of social distancing and lockdowns. Such findings may indicate deterioration of insulin resistance during the COVID-19 pandemic. This study provides valuable information for healthcare professionals, policymakers, and the general public towards mitigating the negative consequences of the pandemic on metabolic health, regardless of weight gain.
COVID-19: Original Article
Unequal burdens of COVID-19 infection: a nationwide cohort study of COVID-19-related health inequalities in Korea
Jeangeun Jeon, Jieun Park, Min-Hyeok Choi, Hongjo Choi, Myoung-Hee Kim
Epidemiol Health. 2023;45:e2023068.   Published online July 31, 2023
DOI: https://doi.org/10.4178/epih.e2023068
  • 2,907 View
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  • 1 Web of Science
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
While the Korean government’s response to the coronavirus disease 2019 (COVID-19) pandemic is considered effective given the relatively low mortality rate, issues of inequality have been insufficiently addressed. This study explored COVID-19-related health inequalities in Korea.
METHODS
Age standardization for various health inequality indices was derived using data from the Korean National Health Insurance Service, the Korea Disease Control and Prevention Agency, and the Microdata Integrated Service of Statistics Korea. The slope index of inequality (SII) and relative index of inequality (RII) were calculated for socioeconomic variables, while absolute difference (AD) and relative difference (RD) were used for gender and disability inequalities.
RESULTS
We observed a number of COVID-19-related health outcome inequalities. Gender inequality was particularly noticeable in infection rates, with the rate of women 1.16 times higher than that of men. In contrast, socioeconomic inequality was evident in vaccination rates, with a 4.5-fold (SII, -4.519; 95% confidence interval, -7.403 to -1.634) difference between the highest and lowest household income groups. Regarding clinical progression post-infection, consistent findings indicated higher risk for men (RD for hospitalization, 0.90; severe cases, 0.54; and fatality, 0.65), individuals with disabilities (RD for hospitalization, 2.27; severe cases, 2.29; and fatality, 2.37), and those from lower socioeconomic groups (SII for hospitalization, 1.778; severe cases, 0.089; and fatality, 0.451).
CONCLUSIONS
While the infection risk was nearly ubiquitous, not everyone faced the same level of risk post-infection. To prevent further health inequalities, it is crucial to develop a thoughtful policy acknowledging individual health conditions and resources.
Summary
Korean summary
2020년 10월-2022년 4월까지의 국내 코로나-19 확진자 데이터와 건강보험 빅데이터, 사망등록통계를 연계하여 건강결과의 불평등 지표를 산출한 결과, 감염율, 백신접종율, 입원율, 중증화율, 치명률에서 소득수준(건강보험료 소득분위 기준), 성별, 장애유무에 따른 건강결과의 불평등이 확인되었다. 감염율은 여성이 남성보다 높았고, 백신접종율은 장애인과 의료급여 수급권자의 비율이 낮게 나타났고, 코로나-19로 인한 입원율과 중증화율, 치명율에서는 남성, 의료급여 수급권자, 장애인의 취약성이 두드러졌다. 본 연구의 분석결과는 국내 방역정책이 기존의 사회불평등을 충분하게 고려하지 못했을 가능성이 크며, 미래 감염병 관리 시 이를 고려하여 불평등을 완화시킬 수 있는 방향의 정책적 전략이 필요하다는 점을 시사한다.
Key Message
This study sought to investigate COVID-19-related health inequalities in Korea by linking COVID-19 registry data to the KNHIS big data and the cause of death data for the period October 2020 - April 2022. COVID-19-related health outcome inequalities were observed in infection, vaccination, hospitalization, clinical progress, and fatality by household income, gender, and disability. The infection rate was higher in women, the vaccination proportion was lower in the disabled and medical-aid beneficiaries, and men, the disabled and medical-aid beneficiaries were vulnerable in clinical progression post-infection which implies that a policy necessarily should consider existing socioeconomic inequalities for future pandemics.
COVID-19: Original Article
Changes in mental health service utilization before and during the COVID-19 pandemic: a nationwide database analysis in Korea
Kyoung Hoon Kim, Sang Min Lee, Minha Hong, Kyu-Man Han, Jong-Woo Paik
Epidemiol Health. 2023;45:e2023022.   Published online February 14, 2023
DOI: https://doi.org/10.4178/epih.e2023022
  • 6,415 View
  • 276 Download
  • 3 Web of Science
  • 1 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
The present study examined the impact of the coronavirus disease 2019 (COVID-19) pandemic on mental health service utilization through a comparative analysis of nationwide data regarding inpatient care users, outpatient visits, emergency department (ED) visits, and admissions via the ED before and during the pandemic.
METHODS
Data from approximately 350,000 Koreans diagnosed with mental illness were analyzed in terms of hospitalization, outpatient visits, and ED visits between January 2018 and June 2021. An interrupted time series analysis was conducted to determine the significance of changes in mental health service utilization indicators.
RESULTS
The number of hospital admissions per patient decreased by 1.2% at the start of the pandemic and 0.7% afterward. The length of hospital stay increased by 1.8% at the outbreak of the pandemic, and then decreased by 20.2%. Although the number of outpatients increased, the number of outpatient visits per patient decreased; the number of outpatient visits for schizophrenia (3.4%) and bipolar disorder (3.5%) significantly decreased immediately post-outbreak. The number of ED visits per patient decreased both immediately post-outbreak and afterward, and ED visits for schizophrenia (19.2%), bipolar disorder (22.3%), and depression (17.4%) decreased significantly immediately post-outbreak. Admissions via the ED did not show a significant change immediately post-outbreak.
CONCLUSIONS
Mental health service utilization increased during the pandemic, but medical service use decreased overall, with a particularly significant decrease in ED utilization. As the pandemic worsened, the decline in outpatient visits became more pronounced among those with severe mental illness.
Summary
Korean summary
이 연구는 COVID-19 전후 정신질환 의료서비스 이용 변화를 분석하였다. 팬데믹 기간 중에 정신질환 의료서비스는 전반적으로 감소하였고, 특히 중증 정신질환의 외래 방문이 감소하였다. 따라서, 정신질환자의 진료 연속성을 보장하기 위한 조치가 요구된다.
Key Message
This study examined the impact of the COVID-19 pandemic on mental health service utilization. The mental health service utilization decreased overall after the outbreak of COVID-19, especially outpatient visits for severe mental illness significantly decreased. Therefore, countermeasures are needed to maintain the continuity of care.

Citations

Citations to this article as recorded by  
  • Adult Mental Health Presentations to Emergency Departments in Victoria, Australia between January 2018 and October 2020: Changes Associated with COVID-19 Pandemic Public Health Restrictions
    Jackson Newberry-Dupé, Wanyu Chu, Simon Craig, Rohan Borschmann, Gerard O’Reilly, Paul Yates, Glenn Melvin, Kylie King, Harriet Hiscock
    Psychiatric Quarterly.2024; 95(1): 33.     CrossRef
COVID-19: Health Statistics
Changes in food and nutrient intakes in Korean adults before and during the COVID-19 pandemic: data from the 2011-2020 Korea National Health and Nutrition Examination Survey
Kyungwon Oh, Suyeon Park, Sihyun Park, Sungha Yun, Hongseok Choi, Eun Kyeong Jeong
Epidemiol Health. 2023;45:e2023015.   Published online February 1, 2023
DOI: https://doi.org/10.4178/epih.e2023015
  • 4,675 View
  • 238 Download
  • 1 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This study was to examine the changes in dietary habits and food and nutrient intakes between before (2019) and during (2020) the coronavirus disease 2019 (COVID-19) pandemic from the Korea National Health and Nutrition Examination Survey (KNHANES).
METHODS
A total of 54,995 participants aged ≥19 years who participated in the 2011-2020 KNHANES were included. The 10-year trend (2011-2020) and differences between 2019 and 2020 for dietary habits and food and nutrient intakes were estimated using SAS.
RESULTS
In the past 10 years (2011-2020), the dietary habits (increase in skipping meals and eating out), food intake (increase in meats and decrease in fruits and vegetables), and nutrient intake (increase in fat and decrease in sodium) in adults have changed. When comparing between 2019 and 2020, there were 4.6%p decrease in the eating out more than once a day. On the other hand, there were no significant differences in the intakes of food, energy and most of nutrients between 2019 and 2020, except for the proportion of energy intake from fat (1.0%p increase) and carbohydrate (1.0%p decrease).
CONCLUSIONS
Although a change in dietary habits from before to during the COVID-19 pandemic was observed, food and nutrient intakes have not deteriorated markedly and appear similar to the trends in the past 10 years. Throughout the COVID-19 pandemic, it is necessary to monitor the effects of changes in dietary habits on health as well as food and nutrient intakes.
Summary
Korean summary
코로나19 유행 전, 후 비교 시, 외식 감소, 가정식 섭취 증가 등 식생활은 변화가 있었으나 주요 식품 및 영양소 섭취는 큰 변화없이 최근 10년간의 추이가 지속되고 있었다.
Key Message
Although a change in dietary habits from before to during the COVID-19 pandemic was observed, food and nutrient intakes have not deteriorated markedly and appear similar to the trends in the past 10 years in Korean adults.

Citations

Citations to this article as recorded by  
  • Comparative study on the health and dietary habits of Korean male and female adults before and after the coronavirus disease 2019 pandemic: utilizing data from the 8th Korea National Health and Nutrition Examination Survey (2019–2021)
    Chaemin Kim, Eunjung Kim
    Korean Journal of Community Nutrition.2024; 29(1): 65.     CrossRef
COVID-19: Health Statistics
Changes in the management of hypertension, diabetes mellitus, and hypercholesterolemia in Korean adults before and during the COVID-19 pandemic: data from the 2010-2020 Korea National Health and Nutrition Examination Survey
Yoonjung Kim, Suyeon Park, Kyungwon Oh, Hongseok Choi, Eun Kyeong Jeong
Epidemiol Health. 2023;45:e2023014.   Published online February 1, 2023
DOI: https://doi.org/10.4178/epih.e2023014
  • 4,756 View
  • 166 Download
  • 2 Web of Science
  • 1 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This study aimed to analyze the changes in chronic disease management indicators, including hypertension, diabetes mellitus, and hypercholesteremia, from 2010-2020 and before (2019) and during (2020) the coronavirus disease 2019 (COVID-19) pandemic.
METHODS
This study included 58,504 individuals aged ≥30 years who participated in the Korea National Health and Nutrition Examination Survey 2010-2020. Trends in the prevalence, awareness, treatment, and control of chronic diseases and the difference in those between before and during the COVID-19 pandemic were analyzed using the SAS program PROC SURVEYREG.
RESULTS
From 2010-2020, the awareness, treatment, and control in adults aged ≥30 years for hypertension and hypercholesterolemia continuously improved, whereas no significant change in the management indicators of diabetes mellitus was observed. The prevalence of hypertension, diabetes mellitus, and hypercholesterolemia in men increased from before to during the COVID- 19 pandemic. However, there was no significant change in the management indicators of hypertension and diabetes mellitus in men and women, and the awareness, treatment, and control rates for hypercholesterolemia increased by 5.5%p, 6.9%p, and 4.1%p respectively.
CONCLUSIONS
In 2020, the first year of the COVID-19 pandemic, the prevalence of hypertension, diabetes mellitus, and hypercholesterolemia increased, but the management indicators of the chronic diseases did not significantly deteriorate. Considering the ongoing COVID-19 pandemic, it is necessary to monitor changes in chronic disease management indicators and to develop efficient and accessible chronic disease prevention and management programs.
Summary
Korean summary
국민건강영양조사 자료를 분석한 결과 11년간(2010-2020년) 성인의 고혈압, 고콜레스테롤혈증 인지율, 치료율, 치료자 중 조절률은 개선된 반면 당뇨병은 변화가 없었다. 코로나19 유행 전(2019년)·후(2020년) 비교시 남자에서 고혈압, 당뇨병, 고콜레스테롤혈증 유병률이 증가했다. 그러나 고혈압, 당뇨병 관리지표는 변화가 없었고, 고콜레스테롤혈증 관리지표만 개선되었다.
Key Message
The rates of awareness, treatment, and control in adults aged ≥30 years for hypertension and hypercholesterolemia continuously improved, whereas no significant change in the management indicators of diabetes mellitus was observed over the past 11 years (2010-2020). The prevalence of hypertension, diabetes mellitus, and hypercholesterolemia in men increased from before (2019) to during (2020) the COVID-19 pandemic. However, there was no significant change in the management indicators of hypertension and diabetes mellitus in men and women, and that of hypercholesterolemia improved.

Citations

Citations to this article as recorded by  
  • Topic Modeling-Based Analysis of News Keywords Related to Patients with Diabetes during the COVID-19 Pandemic
    Jeong-Won Han, Jung Min Kim, Hanna Lee
    Healthcare.2023; 11(7): 957.     CrossRef
Original Article
Changes in the prevalence of metabolic syndrome in Korean adults after the COVID-19 outbreak
Ji-Young Kwon, Sang-Wook Song
Epidemiol Health. 2022;44:e2022101.   Published online November 5, 2022
DOI: https://doi.org/10.4178/epih.e2022101
  • 3,438 View
  • 93 Download
  • 2 Web of Science
  • 2 Crossref
AbstractAbstract PDF
Abstract
OBJECTIVES
This study sought to reveal changes in the prevalence of metabolic syndrome (MetS) after the start of the coronavirus disease 2019 (COVID-19) pandemic and to identify the groups showing the greatest changes.
METHODS
We compared the prevalence of MetS between 2017–2019 (i.e., the 3-year period before the COVID-19 pandemic) and soon after the initial outbreak of COVID-19 in 2020 among 24,564 adults ≥ 19 years of age using data from the Korea National Health and Nutrition Examination Survey.
RESULTS
The prevalence of MetS increased steadily between 2017 and 2020 (29.4 to 35.3%, p for trend < 0.001), with annual percent changes of 2.0%p, 2.2%p, and 1.7%p, respectively. Compared to 3 years before the COVID-19 pandemic, the prevalence of MetS significantly increased during the COVID-19 pandemic in males (6.2%p; 95% confidence interval [CI], 3.5 to 8.9) compared to females (1.5%p; 95% CI, -1.2 to 4.1). The age groups with the greatest increases in MetS prevalence after the COVID-19 pandemic were those in their 40s (4.6%p; 95% CI, 0.9 to 8.4) and 50s (5.8%p; 95% CI, 2.2 to 9.4). By educational background, the increase in MetS prevalence was greatest among those with a college degree or higher (5.1%p). The prevalence of MetS in high-income (5.3%p) and low-income (4.6%p) groups significantly increased.
CONCLUSIONS
The increasing trend in the overall prevalence of MetS continued during the COVID-19 pandemic. In particular, the prevalence of MetS among adult males in their 40s and 50s increased significantly after the COVID-19 outbreak in Korea.
Summary

Citations

Citations to this article as recorded by  
  • Increasing incidence and prevalence of metabolic syndrome in people living with HIV during the COVID-19 pandemic
    Rebecka Papaioannu Borjesson, Laura Galli, Camilla Muccini, Andrea Poli, Tommaso Clemente, Martina Bottanelli, Nicola Gianotti, Silvia Nozza, Antonella Castagna, Vincenzo Spagnuolo
    Frontiers in Medicine.2023;[Epub]     CrossRef
  • Body mass index and prevalence of metabolic syndrome among Korean adults before and after the COVID-19 outbreak: a retrospective longitudinal study
    Joo-Eun Jeong, Hoon-Ki Park, Hwan-Sik Hwang, Kye-Yeung Park, Myoung-Hye Lee, Seon-Hi Shin, Nayeon Choi
    Epidemiology and Health.2023; 45: e2023081.     CrossRef
COVID-19: Special Article
Obesity, hypertension, diabetes mellitus, and hypercholesterolemia in Korean adults before and during the COVID-19 pandemic: a special report of the 2020 Korea National Health and Nutrition Examination Survey
Ga Bin Lee, Yoonjung Kim, Suyeon Park, Hyeon Chang Kim, Kyungwon Oh
Epidemiol Health. 2022;44:e2022041.   Published online April 25, 2022
DOI: https://doi.org/10.4178/epih.e2022041
  • 14,489 View
  • 628 Download
  • 12 Web of Science
  • 20 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
We investigated trends in obesity, hypertension, diabetes, and hypercholesterolemia before and during the coronavirus disease 2019 (COVID-19) pandemic in the Korean adult population.
METHODS
Data from 60,098 participants in the Korea National Health and Nutritional Examination Survey between 2011 and 2020 aged ≥19 were used. The age-standardized prevalence and annual percent changes (APCs) were calculated for obesity (body mass index ≥25 kg/m2), hypertension (systolic/diastolic blood pressure ≥140/90 mmHg or under treatment), diabetes (hemoglobin A1c ≥6.5%, fasting glucose ≥126 mg/dL, physician diagnosis, or under treatment), and hypercholesterolemia (total cholesterol ≥240 mg/dL or under treatment).
RESULTS
Over the past decade (2011-2020), the age-standardized APCs (95% confidence intervals) for obesity, hypertension, diabetes and hypercholesterolemia were 3.0% (2.1 to 3.8), 0.1% (-1.3 to 1.5), 1.5% (-1.0 to 4.0) and 8.0% (5.7 to 10.3), respectively, in men; and -0.2% (-1.5 to 1.2), -0.5% (-1.9 to 0.9), -0.1% (-2.3 to 2.2) and 5.9% (3.9 to 8.0), respectively, in women. In 2020 compared to the previous 3 years (2017-2019), obesity, hypertension, diabetes, and hypercholesterolemia increased in men (6.0, 1.8, 1.9, and 2.8%p, respectively), but an increase was not apparent in women (2.5, -1.1, 0.8, and 0.7%p, respectively).
CONCLUSIONS
An increase in major chronic diseases was observed in Korean adults, especially men, during the COVID-19 pandemic. In order to reduce the burden of cardiovascular and metabolic diseases in the future, effective intervention strategies need to be developed according to the characteristics of the target groups.
Summary
Korean summary
한국인의 비만, 고혈압, 당뇨 및 고지혈증 유병률은 지난 10년간 전반적으로 증가하는 경향을 보였다. 특히, 코로나 19가 유행한 2020년에 남성의 주요 만성질환 유병률은 지난 3년 평균치와 비교하였을 때 모두 유의하게 증가하였다. 반면, 여성에서 만성질환 유병률의 뚜렷한 증가는 관찰되지 않았다.
Key Message
During COVID-19 pandemic, the overall increase in major chronic diseases was observed in Korean adults, and this trend was prominent in men. Accordingly, target-specific intervention strategies need to be developed to reduce the burden of cardiovascular and metabolic diseases in the future.

Citations

Citations to this article as recorded by  
  • Korea Hypertension Fact Sheet 2023: analysis of nationwide population-based data with a particular focus on hypertension in special populations
    Hyeon Chang Kim, Hokyou Lee, Hyeok-Hee Lee, Dasom Son, Minsung Cho, Sojung Shin, Yeeun Seo, Eun-Jin kim, Song Vogue Ahn, Sun Ha Jee, Sungha Park, Hae-Young Lee, Min Ho Shin, Sang-Hyun Ihm, Seung Won Lee, Jong Ku Park, Il Suh, Tae-Yong Lee
    Clinical Hypertension.2024;[Epub]     CrossRef
  • Factors associated with gastric and duodenal neuroendocrine tumors: A multicenter case-control study
    Kwangwoo Nam, Su Youn Nam, Jun Chul Park, Young Sin Cho, Hyuk Soon Choi, Kyoungwon Jung, Seon-Young Park, Joon Hyun Cho, Hyonho Chun
    Digestive and Liver Disease.2024;[Epub]     CrossRef
  • Association between Weight Change and Incidence of Dyslipidemia in Young Adults: A Retrospective Cohort Study of Korean Male Soldiers
    Joon-Young Yoon, Won Ju Park, Hee Kyung Kim, Ho-Cheol Kang, Cheol-Kyu Park, Wonsuk Choi
    Journal of Obesity & Metabolic Syndrome.2024; 33(1): 36.     CrossRef
  • Sleep Deficit as a Risk Factor for Hypertension in Korean Adults
    Mi-Joon Lee, Bum-Jeun Seo, Inmyung Song
    Sustainability.2023; 15(3): 2586.     CrossRef
  • Gene–Nutrient Interactions in Obesity: COBLL1 Genetic Variants Interact with Dietary Fat Intake to Modulate the Incidence of Obesity
    Junkyung Kwak, Dayeon Shin
    International Journal of Molecular Sciences.2023; 24(4): 3758.     CrossRef
  • Identifying the Associations of Nightly Fasting Duration and Meal Timing with Type 2 Diabetes Mellitus Using Data from the 2016–2020 Korea National Health and Nutrition Survey
    Junkyung Kwak, Kyeong-A Jang, Haeng-Ran Kim, Min-Sook Kang, Kyung Won Lee, Dayeon Shin
    Nutrients.2023; 15(6): 1385.     CrossRef
  • Changes in the Prevalences of Obesity, Abdominal Obesity, and Non-Alcoholic Fatty Liver Disease among Korean Children during the COVID-19 Outbreak
    Kyungchul Song, Juyeon Yang, Hye Sun Lee, Su Jin Kim, Myeongseob Lee, Junghwan Suh, Ahreum Kwon, Ho-Seong Kim, Hyun Wook Chae
    Yonsei Medical Journal.2023; 64(4): 269.     CrossRef
  • Revisiting the Diabetes Crisis in Korea: Call for Urgent Action
    Jun Sung Moon
    The Journal of Korean Diabetes.2023; 24(1): 1.     CrossRef
  • Changes in dietary habits and chronic diseases before and after COVID-19 by regions using data from the 2018-2020 Korea Community Health Survey and Consumer Behavior Survey for Foods: a cross-sectional study
    Surim Park, Eun-hee Jang, Seungmin Lee
    Korean Journal of Community Nutrition.2023; 28(2): 124.     CrossRef
  • Trends in socioeconomic inequalities in obesity among Korean adolescents: the Korea Youth Risk Behavior Web-based Survey (KYRBS) 2006 to 2020
    Eunji Kim, Ga Bin Lee, Dong Keon Yon, Hyeon Chang Kim
    Epidemiology and Health.2023; 45: e2023033.     CrossRef
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    Kyungwon Oh, Suyeon Park, Sihyun Park, Sungha Yun, Hongseok Choi, Eun Kyeong Jeong
    Epidemiology and Health.2023; 45: e2023015.     CrossRef
  • Clinical Features and Visual Prognosis of Retinal Vein Occlusion in Those under 50 Years Old
    Soyeon Jung, Haeeun Shin, Hee Seung Chin
    Journal of the Korean Ophthalmological Society.2023; 64(6): 490.     CrossRef
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    Hyeon Chang Kim, Hokyou Lee, Hyeok-Hee Lee, Gabin Lee, Eunji Kim, Moses Song, Jenny Moon, Yeeun Seo
    Clinical Hypertension.2023;[Epub]     CrossRef
  • Comorbidity in patients with arterial hypertension in therapeutic practice
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    Profilakticheskaya meditsina.2023; 26(8): 100.     CrossRef
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    Min-Jin Cho, Song-Yi Han, Soo Kyoung Lim, Eun-Ji Song, Young-Do Nam, Hojun Kim
    Journal of Korean Medicine Rehabilitation.2023; 33(3): 1.     CrossRef
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    Yoonjung Kim, Suyeon Park, Kyungwon Oh, Hongseok Choi, Eun Kyeong Jeong
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    Hyeon Chang Kim
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COVID-19: Original Article
The vaccination coverage rate in under-5 children in Nasiriyah, Iraq before and during the COVID-19 pandemic
Ali Rifaat Alhaddad, Elham Ahmadnezhad, Akbar Fotouhi
Epidemiol Health. 2022;44:e2022035.   Published online March 14, 2022
DOI: https://doi.org/10.4178/epih.e2022035
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AbstractAbstract AbstractSummary PDF
Abstract
providOBJECTIVES: This study compared the vaccination coverage rate (VCR) in children under 5 years old in Nasiriyah, Iraq before and during the coronavirus disease 2019 (COVID-19) pandemic.
METHODS
This cross-sectional study was conducted in the city of Nasiriyah in southeastern Iraq, with data collected from 79 primary healthcare facilities. This study evaluated the VCR in 3 periods (2018, 2019, and 2020) using multi-level random sampling. Pertinent data were extracted from the vaccination records of 598 children for Bacillus Calmette-Guérin (BCG); pentavalent 1, 2, and 3; measles; and activated oral poliovirus vaccine 1 and 2. Missing data were completed by telephone calls to participants’ parents. Logistic regression was applied to compare and estimate the odds ratios (ORs) with 95% confidence intervals (CIs) for the association between VCR and related factors.
RESULTS
The data showed the greatest decline in the studied vaccines in 2020. Among the vaccines studied, BCG had the highest rate in all 3 periods (100% VCR) and measles had the lowest rate (83.7%), reaching 63.6% in 2020 (p<0.001). The highest OR among all types of vaccine were found for the pentavalent-3 vaccine among city dwellers and those born in 2020 (OR, 2.67; 95% CI, 1.39 to 5.10 and OR, 2.34; 95% CI, 1.28 to 4.28, respectively).
CONCLUSIONS
The VCR for children decreased during the COVID-19 pandemic in Iraq, and new health policies are needed to increase the coverage rate. Improving the knowledge and attitudes of parents, as well as removing barriers or risk factors, can also be effective in improving the VCR.
Summary
Key Message
Vaccination is one of the most important essential health services. COVID-19 pandemic has reduced the coverage of vaccination among under five.

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  • Current Impact and Long-Term Influence of the COVID-19 Pandemic on Iraqi Healthcare Systems: A Case Study
    Taysir Al Janabi, Sunny Chung
    Epidemiologia.2022; 3(4): 412.     CrossRef
  • Dropout of Vaccination Among Iraqi Children
    Maha. A. Kadim, Anees Flayyih Abdulhasan, Zainab Abdulameer Abdulrasol, Ali Fadhil Obaid
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COVID-19: Original Article
Depression, anxiety, and stress in Korean general population during the COVID-19 pandemic
Hooyeon Lee, Dongwoo Choi, Jung Jae Lee
Epidemiol Health. 2022;44:e2022018.   Published online January 18, 2022
DOI: https://doi.org/10.4178/epih.e2022018
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  • 628 Download
  • 14 Web of Science
  • 15 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
The aim of this study was to investigate the prevalence and risk factors of poor mental health in the general Korean population during the coronavirus disease 2019 (COVID-19) pandemic.
METHODS
This cross-sectional, population-based, online survey-based study was conducted from November 5 to 20, 2020 and included adults aged 20-49 years in Chungnam Province, Korea. A total of 549 adults were included.
RESULTS
In total, 18.8% of the participants had symptoms of depression, 10.6% had symptoms of anxiety, and 5.1% had a high level of perceived stress during the COVID-19 pandemic. Higher levels of stress (odds ratio [OR], 3.13; 95% confidence interval [CI], 1.13 to 8.67), anxiety (OR, 2.33; 95% CI, 1.09 to 4.49), and depression (OR, 3.00; 95% CI, 1.64 to 5.50) were found among never married, widowed, divorced, and separated people than among married/cohabiting/partnered participants. Participants who felt increased stress at home during the COVID-19 outbreak reported more depression (OR, 2.45; 95% CI, 1.49 to 4.05) and anxiety (OR, 2.42; 95% CI, 1.31 to 4.50). Women had higher risks of anxiety (OR, 1.97; 95% CI, 1.09 to 3.58) and stress (OR, 6.40; 95% CI, 2.30 to 17.85) than men. Participants with the highest household income were less likely to report symptoms of stress than those with the lowest household income (OR, 0.24; 95% CI, 0.06 to 0.96).
CONCLUSIONS
The participants in this study exhibited poor mental health index scores, suggesting that some people are at risk for mental health problems during the COVID-19 pandemic. Being married was independently and significantly associated with a lower likelihood of depression, anxiety, and stress.
Summary
Korean summary
이 연구는 코로나-19 유행 기간 동안 정신건강 현황과 위험 요인을 알아보기 위한 단면연구이다. 코로나 19 유행 이후 가정내 스트레스가 증가했다고 응답한 경우 우울증과 불안감의 유병률이 높았다. 반면, 남성인 경우, 결혼했거나 동거인과 같이 살고 있는 경우에는 우울증, 불안 또는 스트레스의 유병률이 통계적으로 유의하게 낮았다. 마스크 착용하기, 비대면 활동 증가, 또는 사회적 거리두기 등 코로나 19의 유행을 통제하기 위한 많은 정책은 개인의 일상생활과 정신건강에 많은 영향을 미쳤다. 이 연구는 취약 집단을 발굴하고, 정신건강 회복을 위한 전략을 개발하는데 기초자료를 제공할 수 있다.
Key Message
This study revealed high prevalence rates of depression, anxiety, and stress in the general population of Korea aged 20-49 years during the COVID-19 pandemic. Participants who felt increased stress at home reported more depression and anxiety. Men and being married were significantly associated with a lower likelihood of depression, anxiety, or stress. The COVID-19 pandemic has been a traumatic event. In addi­tion, the policies created to prevent its spread have disrupted daily living for the general population. Implement­ing strategies to promote resilience and support psychologically vulnerable individuals during the COVID-19 cri­sis is of fundamental importance.

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    Salma M Abdalla, Shaffi Fazaludeen Koya, Samuel B. Rosenberg, Isaac B. Stovall, Olivia Biermann, Zahra Zeinali, Gregory H. Cohen, Catherine K. Ettman, Sandro Galea
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    Ho-Jun Cho, Kyeong-Sook Choi, Jin-Young Lee, Ji-Ae Yun, Je-Chun Yu
    Psychiatry Investigation.2024; 21(1): 74.     CrossRef
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    Alejo Ramiro Barbuzza, Fabricio Ballarini, Celina Goyeneche, Victoria Reppucci, Pedro Benedetti, Franco Moscato, Jorge H Medina, Cynthia Katche, Diego Moncada, Haydeé Viola
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    Soo Jung Rim, Bong-Jin Hahm, Su Jeong Seong, Jee Eun Park, Sung Man Chang, Byung-Soo Kim, Hyonggin An, Hong Jin Jeon, Jin Pyo Hong, Subin Park
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    Gabriela Carvalho Jurema Santos, Mateus Jurema Rino, Victor Luiz da Silva Lima, José Adilson Santos, Débora Eduarda da Silva Fidelis, Tiago Lacerda Ramos, Adelmo José de Andrade, Camila Tenório Calazans de Lira, Matheus Santos de Souza Fernandes
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    Mythily Subramaniam, Edimansyah Abdin, Saleha Shafie, Peizhi Wang, Shazana Shahwan, Pratika Satghare, Boon Yiang Chua, Michael Y Ni, Phyllis Lun, Wen Lin Teh, Janhavi Ajit Vaingankar, Siow Ann Chong
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    Journal of Psychosomatic Obstetrics & Gynecology.2023;[Epub]     CrossRef
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    Madeeha Khan, Sadaf Majeed, Quratul Ain, Amjad Nawaz, Khadija Awais Sumra, Vilma Lammi, Faizan Nihal, Aleena Afrah, Ejaz Ahmed Khan, Mohammad Iqbal Khan, Fouzia Sadiq
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COVID-19: Perspective
Neglecting the neglected during the COVID-19 pandemic: the case of leptospirosis in Sri Lanka
Janith Warnasekara, Suneth Agampodi
Epidemiol Health. 2022;44:e2022015.   Published online January 10, 2022
DOI: https://doi.org/10.4178/epih.e2022015
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AbstractAbstract AbstractSummary PDF
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has disrupted global health systems and affected the transmission dynamics as well as the surveillance of other infectious diseases. This study described the probable effect of the COVID-19 pandemic on the surveillance and control of leptospirosis in Sri Lanka. With 8,579 reported cases and more than 800 estimated deaths, the Sri Lankan public health surveillance system documented the largest outbreak of leptospirosis in Sri Lankan history in 2020. This was the worst infectious disease outbreak Sri Lanka experienced in 2020, but it was neglected, primarily due to the COVID-19 pandemic.
Summary
Key Message
The largest reported outbreak of leptospirosis in Sri Lankan history was not given proper attention; probably due to COVID pandemic.

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  • Evaluating the long-term impact of COVID-19-associated public health interventions on zoonotic and vector-borne diseases in China: an interrupted time series analysis
    Yongbin Wang, Siyu Qing, Xianxiang Lan, Lun Li, Peiping Zhou, Yue Xi, Ziyue Liang, Chenguang Zhang, Chunjie Xu
    Journal of Translational Medicine.2024;[Epub]     CrossRef
  • Molecular Diagnosis as an Alternative for Public Health Surveillance of Leptospirosis in Colombia
    Margarita Arboleda, Mariana Mejía-Torres, Maritza Posada, Nicaela Restrepo, Paola Ríos-Tapias, Luis Alberto Rivera-Pedroza, David Calle, Miryan M. Sánchez-Jiménez, Katerine Marín, Piedad Agudelo-Flórez
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    Journal of the American Veterinary Medical Association.2022; 260(13): 1589.     CrossRef
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    Rathinam R. Sivakumar
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Original Article
Epidemiological Characteristics of Imported Influenza A (H1N1) Cases during the 2009 Pandemic in Korea
Jun Kil Choi, Sang Won Lee, Bo Youl Choi
Epidemiol Health. 2012;34:e2012009.   Published online December 31, 2012
DOI: https://doi.org/10.4178/epih/e2012009
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AbstractAbstract PDF
Abstract
<sec><title>OBJECTIVES</title><p>Quarantine measure for prevention of epidemic disease and further evaluations of their efficiency are possible only by elaborating analyses of imported cases. The purpose of this study was to analyze descriptive epidemiological characteristics of pandemic influenza A (H1N1) cases imported to Korea.</p></sec><sec><title>METHODS</title><p>We collected two sets of data. The first set, comprised daily reported cases of H1N1 obtained from local cities in accordance with government policy about mandatory reporting of all H1N1 cases during May 1 to August 19, 2009. The second set, including 372 confirmed imported H1N1 cases, identified from 13 National Quarantine Stations in the Korea Centers for Disease Control and Prevention from May 24 to December 31, 2009. However, given the lack of information on the nature of the imported H1N1 cases from the two data sets during the over lapping period from May 24 to August 19, we express the number of imported cases as a range for this period.</p></sec><sec><title>RESULTS</title><p>We estimated that the number of imported H1N1 cases from May 1 to August 19, 2009, was between 1,098 and 1,291 and the total number of cases was 2,409 to 2,580. We found the number of imported cases was beginning to diminish as of August. A analysis of the second data set showed that the distribution of sex was similar (males 50.7%, females 49.3%) and the age distribution from 20 to 59 was 61.5% and that of 60 and over was 0.8% of the 372 cases. We identified 25 countries where people infected with H1N1 traveled and 67.5% were in Asia. But the proportion of cases (/1,000) by region shows Oceania (0.199), South America (0.118), Southeast Asia (0.071), North America (0.049), Europe (0.035), and Northeast Asia (0.016) in that order. The order of H1N1 peaking was the Southern Hemisphere, Tropics, and the Nothern Hemisphere.</p></sec><sec><title>CONCLUSIONS</title><p>This study provided information that could make possible the evaluation of the government quarantine measure for stopping imported disease from causing community-acquired spread in the future.</p></sec>
Summary

Citations

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  • Social Distancing and Transmission-reducing Practices during the 2019 Coronavirus Disease and 2015 Middle East Respiratory Syndrome Coronavirus Outbreaks in Korea
    Won Mo Jang, Deok Hyun Jang, Jin Yong Lee
    Journal of Korean Medical Science.2020;[Epub]     CrossRef
Review
A review of mathematical models and strategies for Pandemic Influenza Control.
Seong Sun Kim, Sang Won Lee, Bo Youl Choi
Korean J Epidemiol. 2008;30(2):156-167.   Published online December 31, 2008
DOI: https://doi.org/10.4178/kje.2008.30.2.156
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AbstractAbstract PDF
Abstract
Despite many countries' current effort to make mathematical models for pandemic influenza (PI) and predict the impact of an outbreak, natural history of PI is remains incomplete, so that any assumption or model is unable to completely predict the impact. Our objective is to review and summarize previous studies on parameters and models of PI, and to make suggestions for the controls in order to decrease the impact of PI. We searched PubMed to retrieve literature about the PI model systematically . Reference lists and review papers on the topic were searched, as well. We found 35 articles that examined the PI model over the period of May 2003 to August 2008. We reviewed modelling methods that were focused on the PI, and their parameters i.e. latent period, and basic reproductive number (R0). Then, we summarized PI controls: antivirals, vaccines, and social distancing. Recent studies showed with mathematical models that Targeted Antiviral Prophylaxis (TAP) is the best strategy for containing PI at the source. In case of an outbreak, quick measures of social distancing, including therapeutic and prophylatic antiviral for cases and closing contacts - school closure, workplace closure, border quarantine, and home isolation - were found to be most effective. We reviewed strengths and weaknesses of models that are adaptable in Korea, and summarized their parameters. It is our hope that these strategies with various interventions give important information for future preparation for and response to PI in Korea.
Summary

Citations

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  • Stochastic methods for epidemic models: An application to the 2009 H1N1 influenza outbreak in Korea
    Hyojung Lee, Sunmi Lee, Chang Hyeong Lee
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Original Articles
Epidemic modeling and Table-top Exercise for Emerging Infectious Diseases in Korea.
Byung Chul Chun
Korean J Epidemiol. 2006;28(1):47-63.
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AbstractAbstract PDF
Abstract
Understanding the spread of infections is of vital importance in the control of epidemics and the development of proper policies toprevent infectious diseases. Theory and techniques have been developed for the study of both the evolution of diseases with individual people and the transmission of infections through populations. From broad theoretical issues to specific practical problems, the mathematical modeling studies of infectious diseases have provided great insight to solve the mechanisms of disease spread and to predict the course of epidemics. Emerging and reemerging infectious diseases have attracted widespread concern in Korea. While preparing the influenza pandemic plan in 2004, we developed a model of the new influenza pandemic to estimate the number of cases and deaths, the shortage of medical resources, and the effect of interventions such as isolation and vaccination. Based on this model, we constructed a possible pandemic scenario of the emerging virus, and designed a table-top exercise for public health officials and related administration staff. On March 30th, 2005, the exercise was performed and the results were evaluated as successful. In the case of bioterrorism, a model of small pox epidemic was developed in 2005 to examine the speed of the disease spread in the population and to evaluate the intervention effects in a Korean city. The simulation results were also helpful to form a guideline to prepare for a small pox epidemic. These two experiments confirmed the usefulness of epidemic modeling in Korea.
Summary
Control of Avian Influenza: Calls for International Collaboration.
Baik Lin Seong, Eun Ju Jung
Korean J Epidemiol. 2006;28(1):36-40.
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  • 19 Download
AbstractAbstract PDF
Abstract
The 1918 "Spanish Flu", cause of the largest causality rate ever recorded in human history with 50 million deaths, is genetically related to the current H5N1 virus, suggesting the potential emergence of H5N1 influenza as the next pandemic wave. In the process of co-infection and genetic reassortment of human and H5N1 avian influenza, the H5N1 strain could acquire human viral gene(s) to ignite the human to human spread, as occurred in 1957 and 1976 pandemics. All countries are vulnerable to infection as no effective vaccine has yet been developed for avian influenza. Once developed into a pandemic, the socio-economic impact of avian influenza would be enormous. In response to this danger, Korea recently proposed to establish an international consortium, the Pandemic Influenza Consortium, Korea (PICK), to emphasize close collaboration, especially among Pacific Rim countries. PICK proposes to support the following three areas: 1) international efforts in the implementation of national and regional preparedness plans through the development of epidemiological, microbiological and clinical tools and mechanisms for early detection of pandemic influenza epidemics, 2) the development and clinical evaluation of pandemic influenza candidate vaccine, and 3) the establishment of appropriate mechanisms to ensure the capacity to produce, the availability of supply, and the rational distribution of pandemic influenza vaccines to countries suffering from or at high risk of experiencing outbreaks. Finally, the effort is expected to serve as a basis for initiating, establishing and strengthening the international infrastructure for investigation of the infection mechanism and devising prophylactic and therapeutic responses to various infectious diseases.
Summary

Epidemiol Health : Epidemiology and Health