摘要
目的分析保定市2012-2013年流感流行特征与流感病毒亚型分布情况,为流感防制提供科学依据。方法依托中国流感监测信息系统,按照《全国流感监测方案》的要求进行流行病学和病原学监测。结果 2012-2013年保定市流感哨点医院共监测流感样病例(ILI)4 209例,占门诊就诊比例为1.33%,流感样病例主要集中在15岁以下儿童,占87.31%;流感病毒核酸检测咽拭子标本787份,阳性65份,阳性率为8.26%,甲3亚型36份,占55.38%,新甲1亚型28份,占43.08%,乙型1份,占1.54%。分离到流感病毒9株,分离率为13.85%,其中8株是新甲1亚型,1株是甲3亚型。结论 2012-2013年保定市流感样病例以15岁以下少年儿童为主,流感流行高峰为冬春季,先后出现甲3、新甲1亚型流感病毒的流行,新甲1亚型为优势毒株。
Objective The purpose of this study was to analyze the epidemiological characteristics of influenza and subtypes of influenza viruses in Baoding from 2012 to 2013, in order to provide scientific basis for the prevention of influenza. Methods Based on the national influenza surveillance information system, epidemiological and etiological surveillances on the cases of influenza-like illness were conducted in accordance with the demand of ＂National Influenza Surveillance Program＂. Results Four thousand two hundred and nine cases of influenza-like illness （ILl） were monitored in Baoding from 2012 to 2013. The percentage of ILI cases among all outpatient cases in sentinel hospitals was 1.33%, while the cases were mainly concentrated in children under 15 years of age, accounting for 87.32%. The nucleic acid of influenza virus was analyzed by PCR in 787 throat swab specimens, and 65 specimens were positive, with a positive rate of 8.26%. Among the positive specimens, 36 specimens （55.35%） were influenza A （H3N2） virus, 28 specimens （43.08%） were new influenza A （H1N1） virus, and one specimen （1.54%） was influenza B virus. Nine strains of influenza virus were isolated in January, with a positive rate of 13.85%, eight strains were new influenza A （H1N1） virus, and one strain was influenza A （H3N2） virus. Conclusion The majority of ILI cases were associated with children under 15 years of age, and the epidemic peak of influenza was in winter and spring in Baoding from 2012 to 2013. New influenza A subtype H1N1 and H3N2 were co-circulating, while new influenza A （H1N1） was the predominant strain.
出处
《现代预防医学》
CAS
北大核心
2014年第14期2509-2511,2525,共4页
Modern Preventive Medicine
作者简介
王磊（1981-），女，硕士，主治医师，研究方向：传染病防控
