CDC is working closely with USDA APHIS and the Tennessee Department of Health to minimize any human health risk posed by the avian influenza outbreak in Lincoln County, Tennessee. This includes implementing a protocol to monitor the health of poultry workers exposed to commercial poultry involved in the USDA/APHIS-confirmed highly pathogenic avian influenza (HPAI) A (H7N9) outbreak. At this time, no human infections associated with this outbreak in Tennessee have been detected.