2023 Outbreak of E. coli O157:H7 Infections Associated with an Animal Event at the Appalachian Fairgrounds, Tennessee

In September 2023, an outbreak of E. coli O157:H7 infections occurred among school children who attended an animal event at the Appalachian Fairgrounds in Gray, Tennessee. A total of 64 cases were identified. Nine cases were laboratory confirmed. Seven were hospitalized. Four developed Hemolytic Uremic Syndrome (HUS). Of the 9 laboratory confirmed cases, 4 attended a live animal exhibit at the fairgrounds. The remaining laboratory confirmed cases acquired their infection via secondary spread from household members who attended the animal exhibit. There were no deaths.

Three environmental samples were positive for a gene associated with Shiga Toxin E. coli (STEC) but the outbreak strain of E. coli O157:H7 was not isolated.

Overview

Outbreak began:September 2023
Affected country:US
States/territories:TN
Pathogen:E. coli O157:H7
Vehicle(s):Animal Contact
Location(s):Animal event
Brand name(s):Appalachian Fair
Molecular test results:Not reported

Health impact

Total ill:64
Number hospitalized:7

Sources & documents

Report / reference links
Outbreak documents