1. Department of Medicine, University of California San Diego , La Jolla, CA , USA
2. The Emmes Company, LLC , Rockville, MD , USA
3. Department of Medicine, Stanford University , Palo Alto, CA , USA
4. National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, MD , USA
5. Department of Medicine, Emory University , Atlanta, GA , USA
6. Department of Medicine, University of Miami , Miami, FL , USA
7. Department of Internal Medicine, University of California Davis , Sacramento, CA , USA
8. Department of Medicine, University of Alabama at Birmingham (UAB) , Birmingham, AL , USA
9. Department of Medicine, University of California San Francisco , San Francisco, CA , USA
10. Department of Medicine, Saint Louis University and St. Louis VA Medical Center , Saint Louis, MO , USA
11. Department of Medicine, Houston Methodist , Houston, TX , USA
12. Department of Medicine, Johns Hopkins University School of Medicine , Baltimore, MD , USA
13. Department of Medicine, Pennsylvania State Health Milton S. Hershey Medical Center , Hershey, PA , USA
14. Community Health Systems Department, University of California San Francisco , San Francisco, CA , USA
15. Department of Nursing, Kaiser Permanente National Patient Care Services , Oakland, CA , USA
16. Department of Internal Medicine Galveston, University of Texas Medical Branch , TX , USA
17. Department of Medicine, Uniformed Services University of the Health Sciences , Bethesda, MD , USA
18. Department of Medicine, Brooke Army Medical Center , Joint Base San Antonio-Ft Sam Houston, TX , USA
19. National Centre for Infectious Diseases , Singapore , Singapore
20. Department of Infectious Diseases, Tan Tock Seng Hospital , Singapore , Singapore
21. Lee Kong Chian School of Medicine , Singapore , Singapore
22. Yong Loo Lin School of Medicine , Singapore , Singapore
23. Departments of Internal Medicine and Anesthesiology , Wake Forest University, Winston-Salem, NC , USA
24. Department of Internal Medicine, Seoul National University Hospital College of Medicine , Seoul, Korea
25. Department of Medicine, Center for Vaccine Development and Global Health , University of Maryland School of Medicine, Baltimore, MD , USA
26. Department of Medicine, University of Pennsylvania , Philadelphia, PA , USA
27. Department of Medicine, Duke University , Durham, NC , USA
28. Department of Internal Medicine, University of Nebraska Medical Center , Omaha, NE , USA