[Development and prospect of Influenza Surveillance Network in China].

The annual seasonal epidemic of influenza caused serious disease burden around the world, and serious social panic and economic losses. Due to the high variability and uncertainty of influenza virus, prevention and control of influenza faces many challenges. Surveillance is a key strategy to prevent and control influenza, and influenza is the first infectious disease to be monitored globally. More than 60 years, influenza surveillance programs in China has made great contributions to the prevention and control of influenza in China and the world. Especially in the past 10 years, the influenza surveillance network has developed rapidly, the scale has been expanded significantly, the monitoring content and scope have been continuously improved, and the monitoring quality has been rapidly improved. The China Influenza Surveillance Network is one of the early detection systems for emerging infectious diseases in China and the world. It helps to improve the capacity of public health system in prevention and control and early warning of emerging infectious diseases.