流感是一种严重危害人类健康的急性病毒性呼吸道传染病,我国每年均有不同程度的流感流行[1]。WHO已将流感作为第一个实行全球监测的病毒性急性呼吸道传染病[2]。特别是近几年禽流感在世界各地发生并导致多人死亡后,流感监测更加引起全球公共卫生界的重视[3]。襄樊市2007年加入 Influenza is a kind of acute viral respiratory disease that seriously endangers human health. There are varying degrees of influenza epidemic in our country every year [1]. WHO has identified the flu as the first viral acute respiratory infection to be monitored globally [2]. Influenza surveillance has drawn more attention from the public health community worldwide, especially since bird flu has taken place in various parts of the world in recent years and has led to the death of more than one person. Xiangfan joined in 2007