Epidemiological characteristics and spatio-temporal evolution of severe fever with thrombocytopenia syndrome in Henan Province from 2011 to 2022
10.3969/j.issn.1002-2694.2025.00.083
- VernacularTitle:2011-2022年河南省发热伴血小板减少综合征流行特征及时空演变分析
- Author:
Shaoning QU
1
;
Su YAN
;
Qiongli CHEN
;
Chengcheng AN
;
Xiaobo LIU
;
Jingjing PAN
;
Liping YANG
Author Information
1. 山东大学齐鲁医学院公共卫生学院流行病学系,济南 250012
- Publication Type:Journal Article
- Keywords:
severe fever with thrombocytopenia syndrome;
epidemiology;
spatio-temporal evolution;
Henan Province
- From:
Chinese Journal of Zoonoses
2025;41(7):749-754
- CountryChina
- Language:Chinese
-
Abstract:
This study was aimed at exploring the epidemic characteristics and spatio-temporal evolution patterns of severe fever with thrombocytopenia syndrome(SFTS)in Henan Province from 2011 to 2022,to provide a reference for prevention and control ef-forts.Data on SFTS in Henan Province from 2011 to 2022 were collected from the Information Management System for Infectious Dis-ease Reporting,and epidemiological characteristics and spatio-temporal evolution patterns were investigated through spatial autocorre-lation analysis,standard deviation ellipse analysis,and spatial-centered transfer curves,on a district-county basis.From 2011 to 2022,a total of 5 471 SFTS cases associated with 81 deaths were reported in Henan Province.The incidence rate showed an increasing trend(χ2trend=23.24,P<0.001),and the average annual incidence was 0.4 677/100 000.The case-fatality rate showed a decreasing trend from 2011 to 2019(χ2trend=8.86,P=0.003),but an increasing trend from 2020 to 2022(χ2trend=12.93,P<0.001).The average an-nual case-fatality rate was 1.48%.The peak incidence period was from May to July;this period accounted for 58.75%of the total cases.Females(59.39%),individuals 60-80 years old(55.40%),and farmers(96.64%)were the high prevalence groups.The disease was distributed primarily in Xinyang City,and Shangcheng County had the highest incidence rate(27.411 8/100 000).Spatial aggregation was observed in the southeastern region(Moran's I>0,P<0.001),and the disease centers were all located in Guangshan County,Xin-yang City,and showed southeast-northwest-southeast-northwest-southeast-northeast-southwest movement during the 12-year pe-riod.In conclusion,from 2011 to 2022,SFTS in Henan Province had a high incidence in May to July,and females,older people,and farmers were the high-risk groups.Spatial aggregation was observed in the southeastern region,along with spread to surrounding areas.Xinyang City is therefore a key area for the prevention and control of SFTS.
