脆弱拟杄菌 Bacteroides fragilis Jing Liu(刘晶),PhD MOH&MOE Key Lab of Medical Molecular Virology Shanghai Medical college, Fudan University 复旦大学上海医学院分子病毒学教育部/卫生部重点实验室脆弱拟杆菌 Bacteroides fragilis Jing Liu (刘晶), Ph.D MOH&MOE Key Lab of Medical Molecular Virology Shanghai Medical College, Fudan University 复旦大学上海医学院分子病毒学教育部/卫生部重点实验室