Anaplasmosis, Babesiosis, and Lyme disease are tick-borne diseases spread by the black legged tick (deer tick). This tick is found throughout all of Tennessee.
Ehrlichiosis and Heartland virus have all been associated with the Lone Star tick and this tick is also very common and found throughout the state. The females are notable due to the white spot on their back.
Rocky Mountain Spotted Fever and other Spotted Fever Rickettsia are caused by ticks like the American Dog tick.
Asian Long Horned tick has been recently found in Eastern Tennessee and this tick is an invasive species that can reproduce quickly and cause infestations. So far, this tick has not been found to carry any diseases that can be transmitted to humans in the United States. (Hyperlink for Heartland Virus https://www.cdc.gov/heartland-virus/index.html)