1. Biostatistics Research Branch, Division of Clinical Research, National Institute of Allergy and Infectious Diseases , Rockville, Maryland , USA
2. Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine , Baltimore, Maryland , USA
3. Division of Infectious Disease, Department of Internal Medicine, University of Texas Medical Branch , Galveston, Texas , USA
4. Department of Clinical Pharmacy, University of California, San Francisco , San Francisco, California , USA
5. Department of Medicine, Emory University School of Medicine , Atlanta, Georgia , USA
6. Department of Medicine, Massachusetts General Hospital , Boston, Massachusetts , USA
7. Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts , USA
8. Clinical Monitoring Research Program Directorate, Frederick National Laboratory for Cancer Research , Frederick, Maryland , USA
9. Molecular Virology and Microbiology, Baylor College of Medicine , Houston, Texas , USA
10. Department of Virtual Health and Department of Medicine, Madigan Army Medical Center , Tacoma, Washington , USA
11. Department of Medicine, Uniformed Services University of the Health Sciences , Bethesda, Maryland , USA
12. Division of Microbiology and Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, Maryland , USA
13. Department of Community Health Systems, School of Nursing, University of California, San Francisco, San Francisco, California , USA
14. National Patient Care Services, Kaiser Permanente , Oakland, California , USA
15. Division of Infectious Diseases and Global Medicine, Department of Medicine, University of Florida Health , Gainesville, Florida , USA
16. Division of Infectious Diseases, Department of Internal Medicine, University of Iowa , Iowa City, Iowa , USA
17. Division of Infectious Diseases, University of California, Davis , Sacramento, California , USA
18. COVID-19 Emergency Response Team, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
19. COVID-19–Associated Hospitalization Surveillance Network, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
20. Department of Medicine, Baylor College of Medicine , Houston, Texas , USA
21. Department of Internal Medicine, University of Texas Southwestern Medical Center , Dallas, Texas , USA
22. Division of Infection Diseases, Emory University School of Medicine , Atlanta, Georgia , USA
23. National Emerging Special Pathogens Treatment and Education Center , Atlanta, Georgia , USA
24. Division of Infectious Diseases, Department of Medicine, Duke University Medical Center , Durham, North Carolina , USA
25. Division of Infectious Diseases, Department of Internal Medicine, University of Nebraska Medical Center , Omaha, Nebraska , USA
26. Department of Pulmonary and Critical Care Medicine, Northwest Permanente, Kaiser Permanente Northwest , Portland, Oregon , USA
27. The Center for Health Research, Kaiser Permanente Northwest , Portland, Oregon , USA
28. Division of Infectious Diseases, Penn State Health Milton S. Hershey Medical Center , Hershey, Pennsylvania , USA
29. Division of Infectious Diseases, Department of Medicine, University of Rochester Medical Center , Rochester, New York , USA
30. Department of Medicine, University of California, San Francisco , San Francisco, California , USA
31. Department of Medicine, Montefiore Medical Center, University Hospital for Albert Einstein College of Medicine , Bronx, New York , USA
32. Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, Maryland , USA
33. Division of Pulmonary and Critical Care, Department of Internal Medicine, University of New Mexico Health Sciences Center , Albuquerque, New Mexico , USA
34. Division of Infectious Diseases, Department of Medicine, Montefiore Medical Center/Albert Einstein College of Medicine , Bronx, New York , USA
35. Department of Internal Medicine, Saint Louis University and St Louis Veterans Affairs Medical Center , St Louis, Missouri , USA
36. Division of Pulmonary and Critical Care, Cedars-Sinai Medical Center , Los Angeles, California , USA
37. Division of Infectious Diseases, Department of Medicine, University of Pennsylvania , Philadelphia, Pennsylvania , USA
38. Division of Infectious Diseases and Global Public Health, University of California, San Diego , San Diego, California , USA
39. Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego , San Diego, California , USA