1. Public Health Laboratory, Alberta Precision Laboratories, Edmonton, Alberta, Canada
2. Wyoming Public Health Laboratory, Cheyenne, Wyoming, USA
3. Michigan Department of Health and Human Services Bureau of Laboratories, Lansing, Michigan, USA
4. Kentucky State Public Health Laboratory, Frankfort, Kentucky, USA
5. Minnesota Department of Health Public Health Laboratory, St. Paul, Minnesota, USA
6. Association of Public Health Laboratories, Silver Spring, Maryland, USA
7. Los Angeles County Public Health Laboratory, Los Angeles, California, USA
8. Oregon State Public Health Laboratory, Hillsboro, Oregon, USA
9. District of Columbia Public Health Laboratory, Washington, DC, USA
10. New Jersey Department of Health Public Health and Environmental Laboratories, Ewing Township, New Jersey, USA