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目的了解2010—2013年绵阳市流行性感冒(流感)的流行状况,为制定预防控制策略提供依据。方法收集绵阳市2010—2013年流感样病例(ILI)监测资料、流感病毒病原学监测结果以及暴发疫情资料,采用描述性流行病学方法进行分析。结果 2010—2013年绵阳市3家国家级流感监测哨点医院共报告ILI 50 277例,占门急诊就诊病例总数的2.47%(50 277/2 035 744);2010—2013年各年ILI比例分别为2.71%(12 208/449 960)、1.83%(8 364/456 922)、2.72%(14 514/532 710)和2.55%(15 191/596 152)。病例以0~4岁组最多,共23 927例,占47.59%。共检测3 213份ILI咽拭子样本,检出流感病毒核酸阳性共314份,阳性率为9.77%,其中新甲型H1N1流感病毒阳性110份、A型未分型流感病毒阳性16份、季节性H3型流感病毒阳性109份、B型流感病毒阳性79份。结论 2010—2013年绵阳市流感发病相对稳定,呈现多种型别的流感病毒并存现象。
Objective To understand the prevalence of influenza (influenza) in Mianyang City from 2010 to 2013 and provide the basis for the development of prevention and control strategies. Methods The surveillance data of ILI from 2010 to 2013 in Mianyang City, the surveillance results of influenza virus etiology and the outbreak data were collected and analyzed by descriptive epidemiological method. Results A total of 2 107 ILI 50 cases were reported in three national influenza surveillance sentinel hospitals in Mianyang from 2010 to 2013, accounting for 2.47% (50 277/2 035 744) of the total number of outpatient visits. The proportions of ILI in each year from 2010 to 2013 Were 2.71% (12 208/449 960), 1.83% (8 364/456 922), 2.72% (14 514/532 710) and 2.55% (15 191/596 152). Cases were 0 to 4 years old group, a total of 23 927 cases, accounting for 47.59%. A total of 314 samples of 313 ILI throat swabs were detected. The positive rate of influenza virus nucleic acid was 314.7%, of which 110 were positive for the new influenza A (H1N1) virus and 16 were positive for the type A 109 were positive for type H3 influenza and 79 were positive for type B influenza. Conclusion The incidence of influenza in Mianyang City was relatively stable from 2010 to 2013, showing the co-existence of many types of influenza viruses.