1. Department of Respiratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
2. Division of Infectious Diseases, Allergy and Immunology, Department of Internal Medicine, Saint Louis University School of Medicine, St. Louis, MO, USA
3. Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA
4. Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD, USA
5. Department of Immunology, School of Basic Medicine, Hebei Medical University, Shijiazhuang, Hebei, China