Dr. Liu, Researcher, Director of Avian Disease Surveillance Unit, China Animal Health and Epidemiology Center, Head of National Newcastle Disease Reference Laboratory and National Avian Influenza Specialized Laboratory, Core member of Innovation Team of Key Fields, Ministry of Science and Technology, Reviewer of National Natural Science Foundation and Postdoctoral Science Foundation, Member of Biosafety Review Expert Committee of Animal Pathogenic Microbiology Laboratory, Ministry of Agriculture and Rural Development, China Immunology Society He is a member of the Standing Committee of the Veterinary Immunology Branch of the Chinese Society of Immunology, and a mentor of the Chinese Veterinary Field Epidemiology Training Program. He is mainly engaged in the surveillance and research of Newcastle disease, avian influenza and other major avian diseases as well as new diseases. He has presided over 5 scientific research projects, including the National Natural Science Foundation of China, the Special Research Project for Agricultural Public Welfare Industry (Agriculture), and the Special Project for Animal Disease Monitoring and Prevention of the Ministry of Agriculture, etc. He has presided over 4 national standards and agricultural industry standards, won 3 provincial and ministerial level scientific and technological awards, edited and participated in more than 10 books, and published more than 100 research papers, including more than 40 SCI papers.