Prof. Zongxin Ling, who focused on the research of microbial ecology for nearly 18 years, is the principal investigator of Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University. He is also distinguished professor of the key laboratory of microbial ecology and disease control, Dalian, Liaoning Province. Dr. Ling received his