Zhang Xinxin, female, born in June 1963, is a doctor, professor, chief physician and doctoral supervisor. At present, he is the director of clinical virus research office, deputy director of infectious diseases department and deputy director of teaching and research department of infectious diseases and parasitic diseases of Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine. Member of Virology Branch of Chinese Medical Association, member of Shanghai Hepatology Branch of Chinese Medical Association, director of International Institute of Tropical Diseases in French-speaking Area, chairman of postdoctoral club of Sino-French Foundation of French Academy of Sciences, and editor of China Journal of Laboratory Medicine Liver, journal of tropical diseases and parasitology Journal and Word J Gastroenterology. Mainly engaged in clinical medical treatment and scientific research of infectious diseases, especially the diagnosis, treatment, prevention and pathogenesis of viral hepatitis. He went to the French National Institute of Health and Medicine and the French National Research Center to study the genetic variation of hepatitis B virus and the therapeutic vaccine of hepatitis C respectively.