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Jin Seok Kim 2 Articles
Epidemiological Characteristics of Scrub Typhus in Korea, 2009
Sunja Kim, Jin Seok Kim, Hagyung Lee
Osong Public Health Res Perspect. 2010;1(1):55-60.   Published online December 31, 2010
DOI: https://doi.org/10.1016/j.phrp.2010.12.012
  • 1,874 View
  • 20 Download
  • 15 Citations
AbstractAbstract PDF
Objectives
Currently, the incidence of scrub typhus has increased in urban areas. In this study, we described the epidemiological characteristics of scrub typhus cases reported in the urban areas of Korea in 2009.
Methods
We analysed the case investigation reports of scrub typhus cases that were collected in Korea in 2009. Specially, the different risk factors such as fieldwork and outdoor activity were compared to urban and rural areas, and six urban cities. Statistical analysis was performed using χ2 test.
Results
A total of 4,461 cases (including 1,663 suspected cases) were analysed in this study. Among these, the case reports of 4,254 cases had complete addresses. The cases with outdoor activities were 720 (85.2%) in urban areas. In Daegu and Daejeon, the number of cases participated in outdoor activities was 32 (34.4%) and 23 (31.5%), respectively. In other urban areas, cases with outdoor activities were more than 85%.
Conclusion
The most common infection risk factor was outdoor activity in urban areas. However, the proportion and distribution of outdoor activities were different in urban areas. These results will be used to establish strategies for effective prevention and management in urban areas.
Trends in Water- and Foodborne Disease Outbreaks in Korea, 2007–2009
Jin Gwack, Kyoung-Chan Lee, Hyo Jin Lee, Wooseok Kwak, Dong Woo Lee, Yeon Hwa Choi, Jin Seok Kim, Young Ah Kang
Osong Public Health Res Perspect. 2010;1(1):50-54.   Published online December 31, 2010
DOI: https://doi.org/10.1016/j.phrp.2010.12.011
  • 1,860 View
  • 13 Download
  • 14 Citations
AbstractAbstract PDF
Objectives
In Korea, every outbreak of acute gastroenteritis in two or more patients who are epidemiologically related is investigated by local public health centres to determine causative agents and control the outbreak with the support of the Korean Centers for Disease Control and Prevention. The findings and conclusions of each outbreak investigation have been summarized annually since 2007 to make reports and statistics of water- and foodborne disease outbreaks.
Methods
All outbreaks reported to Korean Centers for Disease Control and Prevention from 2007 to 2009 were included in the study. We analysed the trends and epidemiologic aspects of outbreaks by month, year, and location.
Results
The total number of outbreaks decreased steadily each year for the period the study covered, whereas the number of patients per outbreak continued to increase resulting from a dramatic increase in the number of patients per outbreak in food service establishments. The outbreaks occurred in the period of June to September, when temperature and humidity are relatively high, which accounted for 44.3% of total outbreaks. The monthly number of outbreaks decreased steadily until November after peaking in May 2009. The most common causative agent was norovirus (16.5%) followed by pathogenic Escherichia coli. The rate of causative agent identification was 60.1%, with higher identification rates in larger outbreaks.
Conclusions
Although a decreasing trend of outbreaks by year was observed in the study, the food services in schools and companies require more attention to hygiene and sanitation to prevent large outbreaks. The ability to establish the cause of an outbreak should be further improved.

PHRP : Osong Public Health and Research Perspectives