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流行性感冒是由流感病毒引起的急性呼吸道传染病 ,也是一种波及全球范围的传染病。人们很早就认识了流感的流行和严重性 ,但由于其病毒极易变异和传播途径易于实现 ,至今尚无有效控制办法。为此 ,1999～ 2 0 0 2年 ,我们对流感病毒在人群中流行、变异的动态趋势进行监测。结果
Influenza is an acute respiratory infection caused by the flu virus and is also a contagious disease spreading worldwide. People have long known the prevalence and severity of the flu. However, no effective control measures have been put in place so far due to their extremely easy mutation and easy transmission of the virus. For this reason, from 1999 to 2002, we monitored the trends of the epidemic and mutation of influenza virus in the population. result