1State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, People’s Republic of China
2Key Laboratory of Pathogen Biology of Jiangsu Province, Nanjing Medical University, Nanjing, People’s Republic of China
3Department of Microbiology, Nanjing Medical University, Nanjing, People’s Republic of China
4Department of Gynecology, Nanjing Maternity and Child Health Hospital, the Affiliated Obstetrics and Gynaecology Hospital of Nanjing Medical University, Nanjing, People’s Republic of China
5Department of Pathology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, People’s Republic of China
6Laboratory of Human Virology and Oncology, Shantou University Medical College, Shantou, Guangdong China
7UPMC Hillman Cancer Center, Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, PA 15232 USA