1. Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
2. Division of Disease Control and Public Health Response, Colorado Department of Public Health and Environment , Denver, Colorado , USA
3. Department of Medicine, Emory University School of Medicine , Atlanta, Georgia , USA
4. Georgia Emerging Infections Program , Atlanta, Georgia , USA
5. Atlanta Veterans Affairs Medical Center , Decatur, Georgia , USA
6. Maryland Department of Health, Infectious Disease Epidemiology and Outbreak Response Bureau , Baltimore, Maryland , USA
7. Minnesota Department of Health , Saint Paul, Minnesota , USA
8. NewYork Emerging Infections Program at the University of Rochester Medical Center , Rochester, New York , USA
9. Public Health Division, Oregon Health Authority , Portland, Oregon , USA
10. Tennessee Department of Health , Nashville, Tennessee , USA