1. Department of Epidemiology University of Florida Gainesville Florida USA
2. Emerging Infections Program Yale University School of Public Health New Haven Connecticut USA
3. Influenza Division Centers for Disease Control and Prevention Atlanta Georgia USA
4. California Emerging Infections Program Oakland California USA
5. Colorado Department of Public Health and Environment Denver Colorado USA
6. Emory University School of Medicine Atlanta Georgia USA
7. Georgia Emerging Infections Program Atlanta Georgia USA
8. Atlanta VA Medical Center Decatur Georgia USA
9. Michigan Department of Health and Human Services Lansing Michigan USA
10. Minnesota Department of Health St. Paul Minnesota USA
11. New Mexico Department of Health Santa Fe New Mexico USA
12. New York State Department of Health Albany New York USA
13. Center for Community Health and Prevention University of Rochester School of Medicine and Dentistry Rochester New York USA
14. Ohio Department of Health Columbus Ohio USA
15. Oregon Health Authority Portland Oregon USA
16. Vanderbilt University School of Medicine Nashville Tennessee USA
17. Salt Lake County Health Department Salt Lake City Utah USA