Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/79607
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Type: Journal article
Title: Spatiotemporal patterns of Japanese Encephalitis in China, 2002-2010
Author: Wang, L.
Zhang, W.
Ding, F.
Hu, W.
Soares Magalhaes, R.
Sun, H.
Li, Y.
Zou, W.
Wang, Y.
Liu, Q.
Li, S.
Yin, W.
Huang, L.
Clements, A.
Bi, P.
Li, C.
Citation: PLoS Neglected Tropical Diseases, 2013; 7(6):1-8
Publisher: Public Library of Science
Issue Date: 2013
ISSN: 1935-2727
1935-2735
Statement of
Responsibility: 
Li-Ya Wang, Wen-Yi Zhang, Fan Ding, Wen-Biao Hu, Ricardo J. Soares Magalhaes, Hai-Long Sun, Yi-Xing Li, Wen Zou, Yong Wang, Qi-Yong Liu, Shen-Long Li, Wen-Wu Yin, Liu-Yu Huang, Archie C.A. Clements, Peng Bi and Cheng-Yi Li
Abstract: OBJECTIVE: The aim of the study is to examine the spatiotemporal pattern of Japanese Encephalitis (JE) in mainland China during 2002–2010. Specific objectives of the study were to quantify the temporal variation in incidence of JE cases, to determine if clustering of JE cases exists, to detect high risk spatiotemporal clusters of JE cases and to provide evidence-based preventive suggestions to relevant stakeholders. METHODS: Monthly JE cases at the county level in mainland China during 2002–2010 were obtained from the China Information System for Diseases Control and Prevention (CISDCP). For the purpose of the analysis, JE case counts for nine years were aggregated into four temporal periods (2002; 2003–2005; 2006; and 2007–2010). Local Indicators of Spatial Association and spatial scan statistics were performed to detect and evaluate local high risk space-time clusters. RESULTS: JE incidence showed a decreasing trend from 2002 to 2005 but peaked in 2006, then fluctuated over the study period. Spatial cluster analysis detected high value clusters, mainly located in Southwestern China. Similarly, we identified a primary spatiotemporal cluster of JE in Southwestern China between July and August, with the geographical range of JE transmission increasing over the past years. CONCLUSION: JE in China is geographically clustered and its spatial extent dynamically changed during the last nine years in mainland China. This indicates that risk factors for JE infection are likely to be spatially heterogeneous. The results may assist national and local health authorities in the development/refinement of a better preventive strategy and increase the effectiveness of public health interventions against JE transmission.
Keywords: Humans; Encephalitis, Japanese; Cluster Analysis; Topography, Medical; Time Factors; China
Description: Extent: 8 p.
Rights: Copyright: © 2013 Wang et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
RMID: 0020130415
DOI: 10.1371/journal.pntd.0002285
Appears in Collections:Environment Institute publications
Public Health publications

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