1. Centers for Disease Control and Prevention, Atlanta, Georgia, USA
2. Ohio Department of Agriculture, Reynoldsburg, Ohio, USA
3. Ohio Department of Health, Columbus, Ohio, USA
4. Arkansas Department of Health and Human Services, Little Rock, Arkansas, USA
5. Arkansas Department of Agriculture, Little Rock, Arkansas, USA
6. Rhode Island Department of Environmental Management, Providence, Rhode Island, USA
7. Rhode Island Department of Public Health, Providence, Rhode Island, USA