Surveillance data on typhoid fever and paratyphoid fever in 2015, China
10.3760/cma.j.issn.0254-6450.2017.06.013
- VernacularTitle:2015年全国伤寒、副伤寒流行病学特征和空间聚类分析
- Author:
Fengfeng LIU
1
;
Shanlu ZHAO
;
Qi CHEN
;
Zhaorui CHANG
;
Jing ZHANG
;
Yaming ZHENG
;
Li LUO
;
Lu RAN
;
Qiaohong LIAO
Author Information
1. 中国疾病预防控制中心传染病预防控制处传染病监测预警重点实验室
- Keywords:
Typhoid fever/paratyphoid fever;
Epidemiological features;
Retrospective space-time analysis
- From:
Chinese Journal of Epidemiology
2017;38(6):754-758
- CountryChina
- Language:Chinese
-
Abstract:
Objective Through analyzing the surveillance data on typhoid fever and paratyphoid fever in 2015 to understand the related epidemiological features and most possible clustering areas of high incidence.Methods Individual data was collected from the passive surveillance program and analyzed by descriptive statistic method.Characteristics on seasonal,regional and distribution of the diseases were described.Spatial-temporal clustering characteristics were estimated,under the retrospective space-time method.Results A total of 8 850 typhoid fever cases were reported from the surveillance system,with incidence rate as 0.65/100 000.The number of paratyphoid fever cases was 2 794,with incidence rate as 0.21/100 000.Both cases of typhoid fever and paratyphoid fever occurred all year round,with high epidemic season from May to October.Most cases involved farmers (39.68％),children (15.89％) and students (12.01％).Children under 5 years showed the highest incidence rate.Retrospective space-time analysis for provinces with high incidence rates would include Yurnan,Guangxi,Guizhou,Hunan and Guangdong,indicating the first and second class clusters were mainly distributed near the bordering adjacent districts and counties among the provinces.Conclusion In 2015,the prevalence rates of typhoid fever and paratyphoid fever were low,however with regional high prevalence areas.Cross regional transmission existed among provinces with high incidence rates which might be responsible for the clusters to appear in these areas.
