1. 1Tennessee Department of Health, Nashville, Tennessee 37243
2. 2California Emerging Infections Program, Oakland, California 94612
3. 3California Environmental Health Specialists Network, Public Health Foundation Enterprises, Richmond, California 91746
4. 4Georgia Department of Public Health, Atlanta, Georgia 30303
5. 5Minnesota Department of Health, Mankato, Minnesota 56001
6. 6Rhode Island Department of Health, Providence, Rhode Island 02908
7. 7New York State Department of Health, Albany, New York 12180
8. 8Minnesota Department of Health, St. Paul, Minnesota 55164
9. 9Centers for Disease Control and Prevention, National Center for Environmental Health, Atlanta, Georgia 30341, USA