1. Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
2. Division of Infectious Diseases, Department of Medicine, University of San Diego School of Medicine, San Diego, California, USA
3. Division of Infectious Diseases & Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
4. Division of Infectious Diseases, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
5. Division of Infectious Diseases, Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington, USA
6. Division of Infectious Diseases, Department of Medicine, Wake Forest School of Medicine, Winston Salem, North Carolina, USA
7. Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
8. Johns Hopkins Bayview Medical Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
9. Biostatistics, Epidemiology, and Data Management Core, Johns Hopkins School of Medicine, Baltimore, Maryland, USA