• Title/Summary/Keyword: epidemic

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Spatio-Temporal Clustering Analysis of HPAI Outbreaks in South Korea, 2014 (2014년 국내 발생 HPAI(고병원성 조류인플루엔자)의 시·공간 군집 분석)

  • MOON, Oun-Kyong;CHO, Seong-Beom;BAE, Sun-Hak
    • Journal of the Korean Association of Geographic Information Studies
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    • v.18 no.3
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    • pp.89-101
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    • 2015
  • Outbreaks of highly pathogenic avian influenza(HPAI) subtype H5N8 have occurred in Korea, January 2014 and it continued more than a year until 2015. And more than 5 million heads of poultry hads been damaged in 196 farms until May 2014. So, we studied the spatial, temporal and spatio-temporal patterns of the HPAI epidemics for understanding the propagation and diffusion characteristics of the 2014 HPAI. The results are expressed using GIS. Throughout the study period three epidemic waves occurred over the time. And outbreaks made three clusters in space. First spatial cluster is adjacent areas of province of Chungcheongbuk-do, Chungcheongnam-do and Gyeonggi -do. Second is Jeonlabuk-do Gomso Bay area. And the last is Naju and Yeongam in Jeollanam-do. Also, most of spatio-temporal clusters were formed in spatially high clustered areas. Especially, in Gomso Bay area space density and spatio-temporal density were concurrent. It means that the effective prevention activity for HPAI was carried out. But there are some exceptional areas such as Chungcheongbuk-do, Chungcheongnam-do, Gyeonggi-do adjacent area. In these areas the outbreak density was high in space but the spatio-temporal cluster was not formed. It means that the HPAI virus was continuing inflow over a long period.

Correlation of Carbohydrate intake with Obesity in Type 2 Diabetes Mellitus Patients (제2형 당뇨병 환자에서 탄수화물 섭취량과 비만과의 상관관계 연구)

  • Park, Yeong-Mi;Son, Jeong-Min;Jang, Hak-Cheol
    • Journal of the Korean Dietetic Association
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    • v.12 no.3
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    • pp.254-263
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    • 2006
  • Background: Type 2 diabetes is occuring in epidemic proportions worldwide and aging has been defined as one of the risk factors for the progression to diabetes. High carbohydrates intake increases blood sugar level and obesity in type 2 diabetes. The purpose of this study was to examine the relationship between carbohydrate intake and obesity in type 2 diabetes. Methods: The study subjects were 72 patients (male 27, female 45), who had been diagnosed as type 2 diabetes at Seoul National University of Bundang Hospital. Their anthropometric(height, weight, waist and hip circumference), biochemical(fasting blood sugar, postprandial -2hour blood sugar, HbA1C, C-peptide, insulin, total cholesterol, triglyceride, HDL-cholesterol, LDL-cholesterol) and body composition were measured. Dietary data were collected by trained interviewers using three non-consecutive food records. Results: The mean age of the subjects was 55.86$\pm$9.30 years, and the mean duration of disease was 1.9$\pm$1.72 years. The mean fasting blood sugar, postprandial-2hour blood sugar and HbA1C of the subjects were 151.91$\pm$34.65mg/dl, 235.23$\pm$70.74mg/dl and 7.45$\pm$1.13%, respectively. There was significant positive correlation of the percent body fat and hip to carbohydrate intake/kg of body weight in obese males (p<0.05). However, the correlation of biochemical factors to carbohydrate intake was not significantly different in obese and non-obese male. The correlation of anthropometry to carbohydrate intake/kg of body weight was not significantly different in obese and non-obese females (p<0.05), and other nutrients. We found significant association between carbohydrate intake and obesity in obese males among type 2 diabetes. The females in type 2 diabetes were affected by several factors rather than energy nutrient intake. Conclusion: In conclusion, the correlation of carbohydrate intake with obesity factor was different in males and females. Therefore, diabetic educators should individualize diabetes nutrition therapy considering the gender.

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Trends in Obesity in a Rural Korean Adults (1990~1999) (한 농촌 지역 성인들의 10년 간 비만도 변화(1990~1999))

  • Kim, Yu-Mi;Quan, Zhen-Yu;Kim, Mi-Kyung;Choi, Bo-Youl
    • Journal of agricultural medicine and community health
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    • v.30 no.1
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    • pp.113-120
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    • 2005
  • Objectives: The worldwide epidemic of obesity is reporting but also in Korea. But there are few studies reporting with a community-based longitudinal data in Korea. This issues objects to measure the prevalence and evaluate the trends of overweight based on the repeated cross-sectional studies at a rural community adults during 10 years. Methods: With 1990~1999 Yang-Pyeong Cohort Baseline Survey Dataset, BMI is calculated and Overweight is categorized according to the classification of overweight in adult by Korean Society for the Study of Obesity. Results and Conclusions: Crude BMI means at 1990 is estimated to $22.0Kg/m^2$ and at 1999, $24.4Kg/m^2$(p for trend<0.0001). Trends of age adjusted BMI has borderline significant, but that of Age and Sex adjusted BMI is statistically significant(p for trend=0.039). In male population the change of the overweight prevalence from 1990 to 1999 is 35%, and in female population the change is 21.9%(Z=0.55). Female has more increased prevalence than male, but the change is more dominant in male than in female. At a rural community, obesity has markedly been increasing during the past decade and female in a rural community has higher prevalence of overweight.

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Seroprevalence of Brucellosis among Risk Population in Gyeongsangbuk-do, 2006 (경상북도 거주 고위험군에서 브루셀라 감염에 관한 혈청 역학적 연구)

  • Lee, Kwan;Park, Woo-Won;Kim, Sung-Hwan;Lee, Do-Young;Park, Mi-Yeoun;Hur, Young-Ju;Lim, Hyun-Sul
    • Journal of Preventive Medicine and Public Health
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    • v.40 no.4
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    • pp.285-290
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    • 2007
  • Objectives : Cases of human brucellosis in Korea have recently increased due to the increasing incidence of bovine brucellosis. The authors conducted this study to elucidate the status of brucellosis through seroepidemiologic study. Methods : We selected our study population from a high risk group. We conducted a questionnaire survey and obtained blood samples to determine the seroprevalence of brucellosis antibodies for 10 days in February, 2005. The titers of brucellosis were measured by the combination of standard tube agglutination test (STA) and enzyme-linked immunosorbent assay (ELISA) test. Results : Our study subjects comprised 1,075 cases: 971 livestock workers, 51 veterinarians, and 53 artificial inseminators. In the STA test, 27 cases (2.5%) had titers of greater than or equal to 1:20. Of 1,068 cases (7 cases were excluded due to previous brucellosis), 7 cases of brucellosis were diagnosed with titers of 1:160, giving a seroprevalence of brucellosis of 0.66%. The seroprevalence in the male group was 0.95%, and that of livestock workers, veterinarians, and artificial inseminators was 0.52%, 4.17%, and 0.00%, respectively. The Spearman's correlation coefficient between the positive rate of bovine brucellosis per capita and household and human brucellosis was 0.806 and 0.744, respectively. The concordance rate between the Korea National Institute of Health and the Gyeongsangbuk-do Institute of Health and Environment by the STA and ELISA tests was 94.7% and 100.0%, respectively. Conclusions : The study results indicated in higher seroprevalence rate among veterinarians than among livestock workers and artificial inseminators. Because veterinarians may be exposed to this high risk, effective working guidelines for veterinarians to guard against brucellosis must be developed. Moreover, more extensive epidemiologic research for laboratory workers and meat handlers is needed.

Screening of Plant Resources of anti-viral activity (항바이러스 활성 식물자원 탐색)

  • Kwon, Dur-Han;Kim, Man-Bae;Yoon, Do-Young;Lee, Young-Hee;Kim, Jae-Wha;Lee, Hee-Gu;Choi, In-Seong;Lim, Jong-Seok;Choe, Yong-Kyeung
    • Korean Journal of Medicinal Crop Science
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    • v.11 no.1
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    • pp.24-30
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    • 2003
  • Aqueous extracts from eleven species of Korean medicinal plants were screened for antiviral activity against transmissble gastroenteritis virus (TGEV) and porcine epidemic diarrhae virus (PEDV). Seven of eleven plant extracts were found to have cytotoxicity for ST cells at the concentration of 1mg/ml, and ten extracts except Ephedra sinica were found to have non-cytotoxicity for Vero cells at the same concentration, Extracts of Zanthoxylum piperium, Cudrina tricuspidata, Clerodendron trichomum, Sophora flavescens, effectively inhibited TGEV, respectively. There were the antiviral activity against TGEV in the extracts of Glesdistsia sinensis, Euonymus alatus, Ficus carica, Solanum nigrum, Ephedra sinica, Xanthium strumarium, Acanthopanax seeliflorus in spite of their cytotoxicities. Nine extracts except Xanthium strumarium and Acanthopanax seeliflorus were found to have the antiviral activitity against PEDV. Extracts of Zanthoxylum piperium, Sophora flavescens was shown to have antiviral activities against both TGEV and PEDV.

Molecular epidemiological study of measles virus throughout an imported epidemic outbreak in Gyeonggi-do in 2014 (2014년 경기지역에서 발생한 해외유입 홍역 바이러스의 분자역학적 특성 분석)

  • Yun, Hee-Jeong;Park, Po-Hyun;Hwang, Sun-Il;Huh, Jeong-Weon;Nam, Soo-Jung;Yong, Kum-Chan;Yoon, Mi-Hye
    • Korean Journal of Microbiology
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    • v.53 no.1
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    • pp.1-8
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    • 2017
  • Measles virus is a highly contagious, exanthematic virus, preventable by the use of an effective live-attenuated vaccine. However, measles virus remains endemic in many area of the world causing nearly 200,000 deaths per year and still a major cause of child mortality, mostly in developing countries. In March 2014, Republic of Korea was certified as a 'national measles elimination' by the WHO as a result of a high-quality case-based surveillance system and population immunity, which was achieved by a high vaccination rate (>95.0% since 1996). But, since the beginning of 2014, the Gyeonggi province has experienced a resurgence of measles cases. In this study, we investigated the characteristics of measles viruses isolated from confirmed measles in Gyeonggi province during January 1, 2014 ~ July 31, 2014, 60 isolates were obtained from 72 confirmed measles specimens. Genotypic distributions and genetic diversities of isolated measles virus were analyzed by sequencing of nucleoprotein (N) gene. 58 (96.7%) imported cases were identified. The predominant genotype was B3, which reflects the circulating measles virus in adjacent countries. The sequences of nucleoprotein (N) gene of isolated MeV were showed that the strains characterized showed the highest degree of identity (99%) with the Philippine related strains in 2013-2014. Therefore, infected traveler returning from the Philippines transmitted secondary infection in Korea.

Characterization and Outbreak Pattern of Isolated Influenzavirus in Busan, 2000-2002 Years. (최근 3년 부산지역에서 분리한 인플루엔자바이러스의 특성 및 발생 양상)

  • 정명주;조경순
    • Microbiology and Biotechnology Letters
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    • v.31 no.4
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    • pp.329-333
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    • 2003
  • Influenzavirus were isolated from patients with acute respiratory infections in Busan during 2000-2002 and characterized their antigenic properties. In 2000, 39 viruses were isolated and they were identified as Influenzavirus. Among the isolated influenzavirus, 23 were A type influenzavirus and 16 were B type influenzavirus. As a result of antigenic characterization, the influenzavirus were determined to A/Sydney/05/97 (H3N2)-like, A/Beijing/262/95 (H1N1)-like, and B/Harbin/07/94-like virus. In 2001, 56 viruses were isolated and all of the viruses were identified as influenzavirus. They were A/Panama/2007/99 (H3N2)-like and A/Newcaledonia/20/99 (H1N1)-like virus In 2002, 114 Influenzaviruses were isolated. Among the isolated influenzavirus, 83 were A type influenzaviruses, and 31 were B type influenzaviruses. They were A/Panama/2007/99 (H3N2)-like, A/Newcaledonia/20/99 (H1N1)-like and B/Beijing/243/97, B/Honkong/22/2001, B/Sichuam/379/99-like virus when determined their antigenic properties. These results may be useful for the establishment of reliable epidemic data.

Knowledge, Attitudes and Compliance Regarding Infection Preventive Behaviors for MERS among Staff in Long-term Care Hospitals (요양병원 종사자의 메르스에 대한 지식, 태도 및 감염예방행위 관계)

  • Chang, Soo Jung;Park, Jinhee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.6
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    • pp.334-344
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    • 2018
  • This study was conducted to identify the relationship between knowledge, attitude, and compliance regarding infection preventive behaviors among long-term care hospital staff during a Middle East Respiratory Syndrome (MERS) epidemic. The subjects were 211 staff members of a long-term care hospital in J province evaluated using a structured survey. Data were collected between June 15 and July 15, 2015 and analyzed using SPSS/WIN 24.0 based on an independent t-test, ANOVA, and Welch test, while post-hoc tests were conducted using the Scheffe test and the Grames-Hawell test. The MERS knowledge score of the staff at the long-term care hospital was high for nurses and nurse aids, who had experienced infection management when they received influenza vaccine in the previous year and were provided with easy access to hand sanitizers. Attitude towards MERS was more positive for nurses than nurse aids and caregivers. The degree of execution of infection preventive behaviors in terms of daily activity was high when influenza shots were received in the prior year; in terms of caring for patients, it was high when influenza shots were received in the previous year and they had easy access to hand sanitizers. The relationship between knowledge, attitude, and infection preventive behavior regarding MERS was such that high knowledge and positive attitude led to a higher degree of execution of infection preventive behavior. Therefore, during periods of high prevalence of newly infectious diseases such as MERS, it is important for the long-term care hospitals to conduct infection management education including the characteristics of the MERS disease, its transmission, and its prevention to enhance knowledge regarding MERS and induce positive change in attitude to improve the level of infection preventive behaviors.

Analysis of Village Safety Index using Accessibility to Public Facilities (공공시설 접근성을 통한 마을단위 안전지수 분석)

  • Jeon, Jeongbae;Kim, Solhee;Suh, Kyo;Yoon, Seongsoo
    • Journal of Korean Society of Rural Planning
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    • v.22 no.2
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    • pp.121-129
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    • 2016
  • A disaster can be defined in many ways based on perspectives, in addition, its types are able to classify differently by various standards. Considering the different perspectives, the disaster can be occurred by natural phenomenon that is like typhoon, earthquake, flood, and drought, and by the accident that is like collapse of facilities, traffic accidents, and environmental pollution, etc. Into the modern society, moreover, the disaster includes the damages by diffusion of epidemic and infectious disease in domestic animals. The disaster was defined by natural and man-made hazards in the past. As societies grew with changes of paradigm, social factors have been included in the concept of the disaster according to new types unexpected by new disease and scientific technology. Change the concept of social disasters, Ministry of Public Safety and Security (MPSS) has provided the regional safety index, which measures the safety level of a local government. However, this regional safety index has some limitation to use because this index provides the information for city unit which is a unit of administrative districts of urban. Since these administrative districts units are on a different level with urban and rural areas, the regional safety index provided by MPSS is not be able to direct apply to the rural areas. The purpose of this study is to determine the regional safety index targeting rural areas. To estimate the safety index, we was used for 3 indicators of the MPSS, a fire, a crime, and an infectious disease which are evaluable the regional safety index using an accessibility analysis. For determining the regional safety index using accessibility from community centers to public facilities, the safety index of fire, crime, and infectious disease used access time to fire station, police office, and medical facility, respectively. An integrated Cheongju, targeting areas in this study, is mixed region with urban and rural areas. The results of regional safety index about urban and rural areas, the safety index in rural area is relatively higher than in the urban. Neverthless the investment would be needed to improve the safety in the rural areas.

Development of Activation Program through the Evaluation of University Health Center - on the women's university in Seoul - (대학보건소의 현황과 활성화 방안 연구 - 서울시 여자대학을 중심으로 -)

  • Kwon, Su-Kyung
    • The Journal of Korean Society for School & Community Health Education
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    • v.2 no.1
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    • pp.41-52
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    • 2001
  • The purpose of this research is to plan the activation of university health business through the appraisal of the function and role of university health centers. To be more specific: Firstly, analyze the facility, personnel, health service of the health centers, Secondly, appraise the role and function of the health centers, and Thirdly, consider the activation plans of health centers. The research method taken was the study of surveys conducted and written research materials on 5 women's universities in Seoul. These materials where descriptively analyzed by converting the surveys, facility and usage of health center and current personnel status in to percentage. The major results of the research are as follows: Unlike as stated in each university's additional clause on the number of personnel were working. This lack of specialized personnel resulted into lack of specialized and various services. Medicine for external application were stocked well whereas only simple medicine for internal application were on shelf and were issued only with a doctor's prescription. Universities with a full-time doctor had various available equipments. One university conducting dental treatment was equipped with indirect chest camera, dental X-ray, unit, chair(dental treatment chair) and even supersonic, electrocardiogram were available. In the case of D women's university, the number of beds compared to the number of students was lower than that of the other 3 universities, to the total size of the university was smaller than that of the other 3 universities. Among health prevention and care matters, health consultation was the only matter practised by all universities. Uniquely, there was one university that hosted epidemic prevention business. There are various tests given by each university, with each showing many differences, but some universities did not even conduct these tests. Vaccinations were usually being conducted through commission. All universities provided basic treatment, therefore matters concerning treatment at health centers were being conducted well. Concerning the management of equipment and documents, all the matters were being conducted except one university where instead of a student medical record, they were using a daily record. Because these were women's universities, most of the educations were on women's health. The subjects of these educations included: sex, contraception, prevention and control of tuberculosis, obesity, mouth hygiene, alcohol, geriatric disease, mental health and first-aid. The rate of health center usage is growing. Being women's universities, the service and treatment practised were mostly concerning sex education.

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