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目的分析2012—2015年汉中市流感样病例(ILI)监测结果,了解汉中市流行性感冒(流感)病毒流行特征,为流感防控提供科学依据。方法收集2012—2015年汉中市ILI及病原学资料,使用SPSS 17.0软件进行统计学分析。结果 2012—2015年汉中市中心医院国家级流感监测哨点医院ILI 5 659例,占门急诊病例就诊总数的1.33%(5 659/424 146),各年的ILI%分别为2.12%、1.41%、1.11%和0.98%。共检测咽拭子标本2 382份,检出阳性标本282份,总阳性率为11.84%,其中甲型H1N1亚型54份(19.15%),甲型H3N2亚型149份(52.84%),乙型流感79份(28.01%)。结论 2012—2015年汉中市流感流行强度较低,优势毒株为甲型H3N2亚型。
Objective To analyze the surveillance results of influenza-like illness (ILI) in Hanzhong between 2012 and 2015 to understand the epidemiological characteristics of influenza virus in Hanzhong and to provide a scientific basis for prevention and control of influenza. Methods The data of ILI and pathogen in Hanzhong from 2012 to 2015 were collected and analyzed by SPSS 17.0 software. Results From 2012 to 2015, there were 5 659 cases of ILI at the National Influenza Surveillance Hospital of Hanzhong Central Hospital, accounting for 1.33% (5 659/4146) of the total number of outpatient and emergency department visits. The ILI% of each year was 2.12% and 1.41% , 1.11% and 0.98% respectively. A total of 2 382 pharyngeal swab specimens were detected, of which 282 were positive, with a total positive rate of 11.84%, of which 54 (19.15%) were A (H1N1), 149 (52.84%) were A (H3N2) Influenza 79 (28.01%). Conclusions The prevalence of influenza in Hanzhong from 2012 to 2015 was low, and the dominant strain was H3N2 H3N2.