流感是由流感病毒所致的急性呼吸道传染病,以经空气飞沫直接传播为主,人群普遍易感,全年均可发病,但暴发或流行具有一定季节性[1-3]。流感暴发疫情主要发生在学校、托幼机构和工厂企业等人群聚集场所。2015年11月2日,苏州市某小学某班级短时间内出现多例以发热、咳嗽、咽痛为主要表现的流感样病例,为核实疫情 Influenza is an acute respiratory disease caused by influenza virus. It mainly spreads directly through air droplets. The population is generally susceptible to the disease and can be affected throughout the year. However, the outbreak or epidemic has a certain seasonality [1-3]. Outbreaks of influenza mainly occurred in crowded places such as schools, nurseries and factories and factories. On November 2, 2015, a number of flu-like cases with fever, cough and sore throat as main symptoms appeared in a class of a primary school in Suzhou City within a short period of time. In order to verify the outbreak