The Relationship between Japanese Encephalitis and Environmental Factors in China Explored Using National Surveillance Data.

Xiao Xia Huang; Lei Yan; Xiao Yan Gao; Yu Huan Ren; Shi Hong FU; Yu Xi Cao; Ying HE; Wen Wen Lei; Guo Dong Liang; Shi Wen Wang; Huan Yu Wang

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The Relationship between Japanese Encephalitis and Environmental Factors in China Explored Using National Surveillance Data.

Author: Xiao Xia HUANG ¹ ; Lei YAN ^{2
,

3} ; Xiao Yan GAO ^{4
,

5} ; Yu Huan REN ⁶ ; Shi Hong FU ^{4
,

5} ; Yu Xi CAO ^{4
,

5} ; Ying HE ^{4
,

5} ; Wen Wen LEI ^{4
,

5} ; Guo Dong LIANG ^{4
,

5} ; Shi Wen WANG ¹ ; Huan Yu WANG ^{4
,

5}
Author Information

1. Office for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
2. Office for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
3. Harmacoepidemiology Asia-Pacific unit, MSD R&D (China) Co., Ltd., Beijing 100012, China.
4. Department of Viral Encephalitis, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
5. State Key Laboratory for Infectious Disease Prevention and Control, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
6. Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China.
Publication Type:Letter
Keywords: Environmental factors; Japanese encephalitis; Landscape
MeSH: China; epidemiology; Encephalitis, Japanese; epidemiology; virology; Environment; Epidemiological Monitoring; Humans; Incidence; Risk Factors
From: Biomedical and Environmental Sciences 2018;31(3):227-232
CountryChina
Language:English
Abstract: Japanese encephalitis (JE) is a serious public health issue. This study was undertaken to better understand the relationship between JE distribution and environmental factors in China. JE data from 2005 to 2010 were retrieved from National Notifiable Disease Report System. ArcGIS, remote sensing techniques, and R software was used to exhibit and explore the relationship between JE distribution and environmental factors. Our results indicated that JE cases were mostly concentrated in warm-temperate, semitropical and tropical zones with annual precipitation > 400 mm; Broad-leaved evergreen forest, shrubs, paddy field, irrigated land, dryland, evergreen coniferous forest, and shrubland were risk factors for JE occurrence, and the former five were risk factors for counties with high JE incidence. These findings will inform the effective allocation of limited health resources such as intensive vaccination, surveillance and training in areas with high environmental risk factors.