Office for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
Office for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Harmacoepidemiology Asia-Pacific unit, MSD R&D (China) Co., Ltd., Beijing 100012, China.
Biomed Environ Sci. 2018 Mar;31(3):227-232. doi: 10.3967/bes2018.028.
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.
日本脑炎（JE）是一个严重的公共卫生问题。本研究旨在更好地了解中国 JE 分布与环境因素之间的关系。从国家法定传染病报告系统中检索了 2005 年至 2010 年的 JE 数据。使用 ArcGIS、遥感技术和 R 软件来展示和探索 JE 分布与环境因素之间的关系。我们的结果表明，JE 病例主要集中在温暖温带、亚热带和热带地区，年降水量>400 毫米；阔叶林、灌木、水田、灌溉地、旱地、常绿针叶林和灌丛是 JE 发生的危险因素，前五种是 JE 高发县的危险因素。这些发现将为在高环境危险因素地区有效分配有限的卫生资源（如强化疫苗接种、监测和培训）提供信息。
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