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目的了解宁波市流行性感冒(流感)流行规律,为流感防控提供依据。方法对宁波市2007年-2011年流感监测年度的流感样病例监测资料、病毒分离鉴定结果信息进行描述分析。结果宁波市流感流行季节为冬春季和夏季,病例主要集中在15岁以下年龄组,占全部流感病例的80%以上;连续5年共监测到流感样病例82247例;检测流感样病例咽拭子标本6634份,分离出流感病毒627株,其中季节性A(H1N1)型59份,A(H3N2)型244份,甲型H1N1型222份,乙型102份。结论 2007年和2009年宁波市流感的流行强度较高,而2008年、2010年-2011年流感的流行情况较为平静。加强对非学龄儿童监护者和学校机构流感防治知识宣传,提高对流感的认知和处理能力,是防控工作的重点。
Objective To understand the prevalence of influenza (influenza) in Ningbo and provide basis for prevention and control of influenza. Methods The surveillance data of flu-like cases and the results of virus isolation and identification from 2007 to 2011 in Ningbo City were analyzed and described. Results The epidemic season of influenza in Ningbo was winter, spring and summer. The cases mainly concentrated in the age group of under 15 years old, accounting for more than 80% of the total cases of influenza. A total of 82,247 influenza-like cases were detected in 5 consecutive years. Sixty-six strains were isolated from 6234 specimens of influenza virus, including 59 strains of seasonal A (H1N1), 244 of type A (H3N2), 222 of type A H1N1 and 102 of type B. Conclusion The prevalence of influenza in Ningbo was high in 2007 and 2009, while the prevalence of influenza in 2008 and 2010-2011 was relatively calm. It is the focus of prevention and control to step up publicity on influenza prevention and treatment knowledge by non-school-age children’s guardians and school institutions and to improve their cognition and handling ability against influenza.