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Open AccessArticle

The Epidemiological Influence of Climatic Factors on Shigellosis Incidence Rates in Korea

Department of Preventive Medicine College of Medicine, Eulji University, Daejeon 34824, Korea
Department of Social and Preventive Medicine, Sungkyunkwan University School of Medicine, Suwon 16419, Korea
Department of Preventive Medicine, College of Medicine, Korea University, Seoul 02841, Korea
Department of Preventive Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea
Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul 08826, Korea
Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang 10408, Korea
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2018, 15(10), 2209;
Received: 22 August 2018 / Revised: 6 October 2018 / Accepted: 6 October 2018 / Published: 10 October 2018
PDF [718 KB, uploaded 10 October 2018]


Research has shown the effects of climatic factors on shigellosis; however, no previous study has evaluated climatic effects in regions with a winter seasonality of shigellosis incidence. We examined the effects of temperature and precipitation on shigellosis incidence in Korea from 2002–2010. The incidence of shigellosis was calculated based on data from the Korean Center for Disease Control and Prevention (KCDC, Cheongju, Korea), and a generalized additive model (GAM) was used to analyze the associations between the incidence and climatic factors. The annual incidence rate of shigellosis was 7.9 cases/million persons from 2002–2010. During 2007–2010, high incidence rates and winter seasonality were observed among those aged ≥65 years, but not among lower age groups. Based on the GAM model, the incidence of shigellosis is expected to increase by 13.6% and 2.9% with a temperature increase of 1 °C and a lag of two weeks and with a mean precipitation increase of 1 mm and a lag of five weeks after adjustment for seasonality, respectively. This study suggests that the incidence of shigellosis will increase with global climate change despite the winter seasonality of shigellosis in Korea. Public health action is needed to prevent the increase of shigellosis incidence associated with climate variations. View Full-Text
Keywords: meteorological factors; infectious diarrheal disease; shigellosis; seasonal variation meteorological factors; infectious diarrheal disease; shigellosis; seasonal variation

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Song, Y.-J.; Cheong, H.-K.; Ki, M.; Shin, J.-Y.; Hwang, S.-S.; Park, M.; Ki, M.; Lim, J. The Epidemiological Influence of Climatic Factors on Shigellosis Incidence Rates in Korea. Int. J. Environ. Res. Public Health 2018, 15, 2209.

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