From Mike Studer, TN State Apiarist:

For everyone with Registered or unregistered apiaries in the following counties: Weakley, Stewart, Obion, Dyer, Henry, Gibson, Carrol, Benton, Humphreys, Houston, or Montgomery. Tests confirmed 11 colonies in 3 apiaries were positive for American Foulbrood. These colonies were in Weakley and Stewart counties. Those colonies have been destroyed. We will be notifying all registered beekeepers within the affected area and inspecting all apiaries within the affected area in the next few weeks. Any beekeeper that thinks they may have AFB should send an e-mail to mike.studer@tn.gov ASAP. Anyone that knowingly has American Foulbrood and does not report it is subject to a $500.00 fine. Please be careful moving colonies within these counties get your local area inspectors to come out and inspect before you move anything.  Anyone moving colonies out of these counties or within these counties without a health certificate is subject to a $500.00 fine. Please everyone be diligent about hygiene when going from one apiary to the other. Designate a hive tool for each apiary or burn them between apiaries. Use disposable gloves when inspecting hives in these counties.