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目的通过对北京市2003~2004年流感监测结果的分析,显示流感的流行趋势,为控制北京市流感流行提供参考。方法总结、分析流感监测点流感样病例、病毒分离及血清学监测情况。结果北京市2003~2004年以流行甲3型为主,1月病例数最多,多以散发病例为主,疫情处于相对平稳状态。正常人群血清对A/PANAMA/2007/99(H3N2)毒株抗体阳性率最高(99.33%);对B/HONGKONG/330/01-LIKE毒株抗体阳性率最低(47.65%)。结论流感样病例数与病原学监测结果吻合,可以用来反映流感活动的强弱,同时说明哨点监测显示流感流行趋势。
Objective Through the analysis of the results of influenza surveillance in Beijing from 2003 to 2004, the epidemic trend of influenza is showed, which may provide a reference for controlling the influenza epidemic in Beijing. Methods were summarized, the flu-like flu cases, virus isolation and serological surveillance were analyzed. Results In 2003-2004, the prevalence of type A was mainly epidemic type A in Beijing. The number of cases in January was the largest, mostly sporadic cases and the epidemic was in a relatively stable state. The positive rate of antibody to A / PANAMA / 2007/99 (H3N2) was the highest in normal population (99.33%), and the lowest in antibody to B / HONGKONG / 330/01-LIKE (47.65%). Conclusions The number of flu-like cases is in good agreement with the results of the etiological surveillance, which can be used to reflect the strength of the flu activity and indicate that the sentinel surveillance shows the flu epidemic trend.