1. Epidemic Intelligence Service, Scientific Education and Professional Development Program Office, Atlanta, Georgia
2. Outbreak Response and Prevention Branch, Division of Foodborne, Waterborne, and Environmental Diseases (DFWED), National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
3. Food and Drug Administration, Atlanta, Georgia
4. Texas Department of State Health Services, Austin
5. Illinois Department of Public Health, Springfield
6. Enteric Diseases Laboratory Branch, DFWED, NCEZID, CDC, Atlanta, Georgia