2004-2006年湛江市流行性感冒调查分析

Analysis of Flu Surveillance from 2004 to 2006 in Zhanjiang City

目的探讨湛江市流行性感冒(流感)的流行特征及掌握病毒毒株变异情况,为制定流感防控策略提供有力的科学依据。方法通过湛江市流感监测网络系统,对流感作流行病学、病原学监测,并严密监控湛江市各地流感暴发情况。结果2004-2006年监测医院上报流感样病例21875例,占监测医院内科门诊(或儿科门诊、发热门诊)病例的7.6%,病例以少年儿童为主,占92.0%,全年均有病例发生,冬春季病例较多;3年共分离到106株流感病毒毒株,有甲3(H3N2)、甲1(HINI)亚型和B型,病毒毒株以甲1(H1N1)为优势株;暴发疫情20宗,均发生在中、小学校。4起由甲3(H3N2)亚型病毒毒株引起,4起由B型毒株引起。结论流感监测工作对控制流感流行与预测有重要意义,需加强湛江市各学校及农村地区的流感防治工作。

Objective To explore characteristics of flu surveillance and variance of flu virus,and provide scientific basis for its prevention and control. Methods Analysis of surveillance data of prevalence and etiology. Results From 2004 to 2006, 21 875 cases with flu were diagnosed, which counted for 7.6% of outpatients from all monitoring hospitals. The 92.0% were children and adolescents. The majority developed in the spring and winter. 106 flu strains were isolated and identified. The dominant strains was A1 （ H1N1 ）. All of 20 outbreak epidemic situation occurred at high school and primary school. Both subtype of A3 （H3 N2 ） and B strain equally resulted in 8. Conclusion Disease surveillance played vital role in prevention and control of flu, the effort should be strengthened in schools and villages in Zhanjiang city.