摘要
目的 对2013—2016年广东口岸输入性流感病例的流行病学特征进行分析,为流感的监测及其疫情防控提供依据。方法 采集广东25个口岸有咳嗽、咽痛、发热、体温≥37℃等症状的入境人员的鼻咽拭子样本,采用实时荧光RT-PCR法对样本进行流感病毒核酸检测和分型,通过Excel、SPSS 22.0等软件对流感病例进行描述和统计分析。结果 2013—2016年,广东口岸共采集14566名流感样病例样本,检出流感病例2984例,阳性率为20.49%。其中,2013年以甲型H1N1(2009)流感为主,2014和2015年均以季节性H3N2流感为主,2016年2-4月甲型H1N1(2009)流感和乙型流感共同流行,之后季节性H3N2流感逐月增多,成为2016年下半年的主要流行株。检出的流感病例主要来自我国香港地区,共检出1 339例,占总病例的44.87%。各年龄组均有流感病例检出,以25~59岁年龄组为主,共检出1 712例,占总流感病例数的57.37%。结论 2013—2016年,广东口岸输入性流感以季节性H3N2、乙型和甲型H1N1(2009)流感交替流行,各年龄组均有流感病例检出。
Objective To analyze the epidemiological characteristics of imported influenza cases at Guangdong ports from 2013 to 2016,and to provide the basis for influenza surveillance,prevention and control. Methods The nasopharyngeal swabs of entry persons with cough,sore throat,fever were collected at 25 ports. The nucleic acid of influenza virus was detected and subtyped by using Real-time RT-PCR method. The description and statistical analysis of the influenza cases presented by Excel and SPSS 22.0 software. Results A total of 14566 nasopharyngeal swabs were collected from influenza-like cases found at Guangdong ports from 2013 to 2016. 2 984 influenza cases were confirmed with the rate 20.49%. The dominant epidemic strain was influenza A H1N1（2009） in 2013,while seasonal influenza H3N2 in 2014 and 2015. Pandemic influenza A H1N1（2009） and influenza B were mainly prevalent in February to April,2016,and then seasonal influenza H3N2 was increasing detected month by month,which became the major epidemic subtype in the second half of 2016. A total of 1339 cases were detected from persons came from Hongkong,China,accounted for 44.87% of the influenza cases. From 2013 to 2016. influenza cases distributed in all of the age groups,mainly in 25-59 age group with 1712 cases were detected,accounted for 57.37%of the total influenza cases. Conclusion From 2013 to 2016,seasonal influenza H3N2,influenza B and influenza A H1N1（2009） were alternately epidemic during different periods,influenza cases distributed in all age groups.
作者
黎东红
孙芳芳
袁帅
范秀莹
郑夔
李小波
戴俊
黄吉城
师永霞
LI Dong-hong;SUN Fang-fang;YUAN Shuai;FAN Xiu-ying;ZHENG Kui;LI Xiao-bo;DAI Jun;HUANG Ji-cheng;SHI Yong-xia(Guangdong Inspection and Quarantine Technology Center,Guangzhou,Guangdong 510700,China)
出处
《中国国境卫生检疫杂志》
CAS
2018年第3期197-200,共4页
Chinese Journal of Frontier Health and Quarantine
基金
广州市健康医疗协同创新重大专项(201604020011)
关键词
流感
广东口岸
流行病学
Influenza
Guangdong ports
Epidemiology
