2018年1~12月本溪市流行性出血热发病情况分析

Analysis of Epidemic Hemorrhagic Fever in Benxi City from January to December 2018

目的分析2018年1~12月本溪市流行性出血热发病情况,以期为疾病防治提供参考依据。方法采用描述性流行病学方法对本溪市2018年1~12月流行性出血热的疫情监测资料进行分析。结果2018年1~12月本溪市流行性出血热发病共47例,无死亡病例,发病率为2.72/10万,其中本溪县地区发病率最高,高新区发病率最低。宿主动物检测显示,同一季节本溪市和国家/省级监测点本溪县野外的鼠密度大于居民区,且春季鼠密度小于秋季。本溪市共解剖鼠肺400只,经出血热抗原检测,抗原阳性9份,鼠带毒率为2.25%,其中居民区阳性3份,鼠带毒率为1.50%;野外阳性6份,鼠带毒率为3.00%;且春季带毒率为1.75%,高于秋季的0.50%。本溪县共解剖鼠肺200只,经出血热抗原检测,抗原阳性3份,鼠带毒率为1.50%,其中居民区阳性1份,鼠带毒率为0.50%;野外阳性2份,鼠带毒率为1.00%;且春季带毒率为1.00%,高于秋季的0.50%。结论本溪市地区流行性出血热发病率存在季节和地区差异,应提高重点地区防鼠灭鼠,重点人群出血热疫苗接种率和防治知识知晓率,有针对性的防御。

Objective To analyze the incidence of epidemic hemorrhagic fever in Benxi City from January to December 2018,with a view to providing a reference for disease prevention and treatment.Methods Descriptive epidemiological methods were used to analyze the epidemic surveillance data of epidemic hemorrhagic fever in Benxi City from January to December 2018.Results From January to December 2018,there were 47 cases of epidemic hemorrhagic fever in Benxi City,with no deaths.The incidence rate was 2.72 per 100,000.Among them,the incidence rate in Benxi County was the highest,and that in the High-tech zone was the lowest.Host animal testing showed that in the same season,the density of rodents in the wild in Benxi City and the national/provincial monitoring point in Benxi County was greater than that in residential areas,and the density of rats in spring was less than that in autumn.A total of 400 rat lungs were dissected in Benxi City.After testing for hemorrhagic fever antigen,9 were positive for the antigen and the rate of virulence in mice was 2.25%,of which 3 were positive in the residential area and 1.50%were in the wild;The poisoning rate is 3.00%;and the poisoning rate in spring is 1.75%,which is higher than 0.50%in autumn.A total of 200 rat lungs were dissected in Benxi County.After hemorrhagic fever antigen test,3 antigens were positive and the virulence rate was 1.50%,of which 1 was positive in residential areas and 0.50%.2 positive cases in the field,the rate of virulence in rats was 1.00%;and the rate of virulence in spring was 1.00%,higher than 0.50%in autumn.Conclusion There are seasonal and regional differences in the incidence of epidemic hemorrhagic fever in Benxi City.It is necessary to improve the anti-rat and rodent control in key areas.The vaccination rate of hemorrhagic fever vaccine and awareness of prevention and control in key populations should be targeted.