1. Epidemic Intelligence Service, Atlanta, Georgia
2. Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia
3. Minnesota Department of Health, St. Paul, Madison
4. Bureau of Communicable Disease, Wisconsin Division of Public Health, Madison
5. Michigan Department of Health and Human Services, Lansing
6. New Hampshire Division of Public Health Services, Concord
7. Children’s Mercy Hospital, Kansas City, Missouri
8. Communicable Disease Service, New Jersey Department of Health, Trenton
9. Maine Center for Disease Control and Prevention, Maine Department of Health and Human Services, Augusta
10. Missouri Department of Health and Senior Services, St. Louis