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目的了解承德市2009-2011年儿童流感流行情况,为制定预防措施提供依据。方法 2009年6月至2011年2月,对承德市2家哨点医院采集的0～14岁儿童疑似咽拭子标本采用荧光PCR法(Real-Time PCR)检测,使用SPSS分析软件进行数据统计分析。结果共采集儿童标本321份,流感病毒核酸阳性率为43.61%(140/321)。2009年9-12月H1N1亚型为优势毒株;2010年1-3月以B型为主,9-12月以H3N2亚型为主;2011年1-2月以H1N1亚型为主。结论承德市流感的高发季节是冬春季,流行优势株为A型H1N1亚型和A型H3N2亚型。
Objective To understand the prevalence of influenza in children from 2009 to 2011 in Chengde City, and to provide the basis for making preventive measures. Methods From June 2009 to February 2011, suspected throat swabs collected from 2 sentinel hospitals in Chengde City were detected by Real-Time PCR and analyzed by SPSS software analysis. Results 321 samples of children were collected, the positive rate of influenza virus nucleic acid was 43.61% (140/321). The H1N1 subtype was the dominant strain from September to December in 2009; the type B was mainly from January to March in 2010, the H3N2 subtype was mainly from September to December, and the H1N1 subtype was mainly from January to February in 2011. Conclusions The epidemic season of influenza in Chengde City is in winter and spring. The predominant strains are type A H1N1 subtype and type A H3N2 subtype.