1. National Center for Immunizations and Respiratory Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
2. Department of Emergency Medicine, University of Iowa , Iowa City, Iowa , USA
3. New York State Emerging Infections Program, University of Rochester Medical Center , Rochester, New York , USA
4. Department of Emergency Medicine, Olive View–UCLA Education and Research Institute , Los Angeles, California , USA
5. National Center for Emerging and Zoonotic Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
6. Healthcare-Associated Infections, California Emerging Infections Program , Oakland, California , USA
7. Healthcare-associated Infections / Antimicrobial Resistance Program, Colorado Department of Public Health & Environment , Denver, Colorado , USA
8. Connecticut Emerging Infections Program, Yale School of Public Health , New Haven, Connecticut , USA
9. Georgia Emerging Infections Program and Emory University School of Medicine , Atlanta, Georgia , USA
10. Maryland Emerging Infections Program, Maryland Department of Health, and University of Maryland, Baltimore County, Baltimore, Maryland , USA
11. Infectious Disease Epidemiology, Prevention and Control Divison, Minnesota Department of Health , St. Paul, Minnesota , USA
12. Public Health Division, Oregon Health Authority , Portland, Oregon , USA
13. New Mexico Emerging Infections Program, University of New Mexico , Albuquerque, New Mexico , USA
14. Department of Health Policy, Vanderbilt University Medical Center , Nashville, Tennessee , USA
15. Department of Emergency Medicine, University of Massachusetts Chan Medical School - Baystate, Springfield, Massachusetts , USA
16. Department of Emergency Medicine, Brigham and Women's Hospital , Boston, Massachusetts , USA
17. Emergency Medicine, Jackson Memorial Hospital , Miami, Florida , USA
18. David Geffen School of Medicine, UCLA , Los Angeles, California , USA
19. Emergency Medicine, Thomas Jefferson University Hospital , Philadelphia, Pennsylvania , USA
20. Department of Emergency Medicine, University of Missouri–Kansas City , Kansas City, Missouri , USA
21. Section of Emergency Medicine, University Medical Center New Orleans, LSU Health Sciences Center , New Orleans, Louisiana , USA
22. Department of Emergency Medicine, University of Alabama at Birmingham , Birmingham, Alabama , USA
23. Department of Emergency Medicine, University of California San Francisco , Fresno, California , USA
24. Section of Emergency Medicine, University of Chicago , Chicago, Illinois , USA
25. Department of Emergency Medicine, University of Massachusetts Chan Medical School , Worcester, Massachusetts , USA
26. Department of Emergency Medicine, University of Mississippi Medical Center , Jackson, Mississippi , USA
27. Emergency Department, University of Washington , Seattle, Washington , USA
28. Emergency Medicine, Valleywise Health Medical Center , Phoenix, Arizona , USA