Objective To analyze the spatial-temporal distribution characteristics of Japanese encephalitis in Yunnan province, China, from 2009 to 2018, and to provide a basis for formulating the strategies of Japanese encephalitis prevention and control. Methods The data of Japanese encephalitis cases in Yunnan province from 2009 to 2018 were collected. Excel 2010 software was used to make statistics and plot the temporal distribution of Japanese encephalitis cases. ArcGIS 10.6 software was used to plot the spatial distribution of Japanese encephalitis cases. SaTScan 9.4.2 software was used to scan and analyze the spatial, temporal, and spatial-temporal distributions of Japanese encephalitis cases. Results A total of 2 091 cases of Japanese encephalitis were reported by 125 counties (districts) from 2009 to 2018. Via the spatial analysis alone, it was found that there were mainly five clusters of Japanese encephalitis cases, which were distributed in 33 counties of Xishuangbanna Dai autonomous prefecture, Pu'er city, Honghe Hani and Yi autonomous prefecture, Zhaotong city, Wenshan Zhuang and Miao autonomous prefecture, Dehong Dai and Jingpo autonomous prefecture, and Kunming city. Via the temporal analysis alone, it was shown that the Japanese encephalitis cases were concentrated in June to September. Via the spatial-temporal analysis, it was shown that there was only one cluster of Japanese encephalitis cases, which was mainly distributed in 8 counties of Zhaotong city, Daguan, Yongshan, Yanjin, Zhaoyang, Shuifu, Suijiang, Ludian, and Zhenxiong, and the cases were concentrated in August to September. Conclusion The incidence of Japanese encephalitis in Yunnan province had spatial-temporal clustering from 2009 to 2018, and it was mainly concentrated in the northeast of Yunnan province. The relevant departments in the northeast of Yunnan province should further strengthen the local Japanese encephalitis surveillance and prevention and control measures.
LU Na, WEI Chun, DING Chun-li, ZHOU Xing-wu, WU Chao, ZHOU Hong-ning
. An analysis of the spatial-temporal distribution characteristics of Japanese encephalitis in Yunnan province, China, 2009-2018[J]. Chinese Journal of Vector Biology and Control, 2021
, 32(1)
: 81
-84
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DOI: 10.11853/j.issn.1003.8280.2021.01.017
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