1. Division of Infectious Diseases, Department of Medicine, Edison Family Center for Genome Sciences & Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
2. Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
3. Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, China
4. Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA
5. Department of Pathology & Immunology, Washington University School of Medicine, St. Louis, MO, USA