You A G, Du Y H, Huang X Y, Wang H F, Su J, Liu Y, Xu B L
Institute for Infectious Disease Control and Prevention, Henan Provincial Center for Disease Control and Prevention, Henan Key Laboratory of Pathogenic Organism, Zhengzhou 450016, China.
Zhonghua Liu Xing Bing Xue Za Zhi. 2017 Oct 10;38(10):1386-1389. doi: 10.3760/cma.j.issn.0254-6450.2017.10.018.
To explore the characteristics regarding temporal, spatial and spatiotemporal distribution on severe fever with thrombocytopenia syndrome (SFTS) in Henan province. Surveillance data related to SFTS was collected in Henan province, from year 2014 to 2016. Descriptive method was used to analyze the distribution of SFTS. 1.7.0 software related to the Public health geographic information system (PHGIS), was applied to draw the spatial distribution map of SFTS. -square test was used to compare the different incidence rates. A total of 2 781 SFTS cases, including 34 deaths, were reported in Henan province from 2014 to 2016, with an average annual fatality rate as 1.22. There were statistically significant differences for the incidence rates of SFTS between different years (<0.01). Cases were mainly concentrated from April to October, which accounted for 96.66 of the total number, with the incidence peak seen in May. Incidence rates of SFTS in spring, summer, autumn were higher than that in winter. The cases were scattering around in 26 counties of 8 cities. Xinyang city reported 2 714 cases, accounting for 97.59 of the total number of cases in the province. The average annual incidence rate in Xinyang city was 17.22 per 100 000, much higher than that for the whole Henan province (0.98 per 100 000), with statistically significant difference (<0.01). Six counties reported having death cases, that accounted for 23.08 of the total number of counties, reported to have death cases. Two kinds of incidence patterns of SFTS were noticed in Henan province, with aggregation in some local regions or sporadic in individual counties. The number of counties with reporting cases increased annually. The epidemic area was expanding and gradually spreading from south to north areas of the province. SFTS was characterized with both temporal and spatial clusters in Henan province. Effective prevention and control measures should be made in accordance with the spatiotemporal distribution and the trend on SFTS.
为探讨河南省发热伴血小板减少综合征（SFTS）的时间、空间及时空分布特征。收集河南省2014年至2016年与SFTS相关的监测数据，采用描述性方法分析SFTS的分布情况。应用公共卫生地理信息系统（PHGIS）相关的1.7.0软件绘制SFTS空间分布图，采用χ²检验比较不同发病率。2014年至2016年河南省共报告2781例SFTS病例，其中34例死亡，年均病死率为1.22%。不同年份间SFTS发病率差异有统计学意义（P<0.01）。病例主要集中在4月至10月，占总数的96.66%，发病高峰在5月。SFTS春、夏、秋季发病率高于冬季。病例分布于8市26个县。信阳市报告2714例，占全省病例总数的97.59%。信阳市年均发病率为17.22/10万，远高于河南省全省（0.98/10万），差异有统计学意义（P<0.01）。6个县报告有死亡病例，占报告有死亡病例县总数的23.08%。河南省SFTS呈现两种发病模式，在部分地区聚集或在个别县呈散发。报告病例的县数逐年增加，疫区不断扩大，且逐渐由该省南部向北部蔓延。河南省SFTS具有时间和空间聚集性特征，应根据SFTS的时空分布及流行趋势制定有效的防控措施。
