1. Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia
2. Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia
3. California Emerging Infections Program, Oakland
4. Colorado Department of Public Health and Environment, Denver
5. Connecticut Emerging Infections Program, Yale School of Public Health, New Haven
6. Departments of Pediatrics and Medicine, Emory University School of Medicine, and Atlanta Veterans Affairs Medical Center, Atlanta, Georgia
7. Iowa Department of Health, Des Moines
8. Maryland Department of Health and Mental Hygiene, Baltimore
9. Michigan Department of Health and Human Services, Lansing
10. Minnesota Department of Health, St Paul
11. New Mexico Department of Health, Santa Fe
12. New York State Department of Health, Albany
13. University of Rochester School of Medicine and Dentistry, Rochester, New York
14. Ohio Department of Health, Columbus
15. Oklahoma Department of Health, Oklahoma City
16. Oregon Department of Public Health, Portland
17. Rhode Island Department of Health, Providence
18. Vanderbilt University School of Medicine, Nashville, Tennessee
19. Utah Department of Health, Salt Lake City