On January 14-16, 2021, the fifth Forum on Prevention and Treatment of Flue and Other Respiratory Viruses and the Class of Respiratory Virus Diagnosis and Treatment was held grandly at the Guangzhou Lab, co-hosted by the SKLRD, the National Clinical Research Center for Respiratory Disease, the National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, KingMed School of Laboratory Medicine of Guangzhou Medical University and KingMed. The class has been held for five times from a pure academic exchange forum at first, which has been gradually promoted to regional platforms and basic levels, carried out the concept of “integrating medicine and testing”, joining hands to promote the advancement of clinical respiratory virus lab diagnosis and application and the development of China’s clinical virology.