The CDC has confirmed a case of La Crosse virus disease in Claiborne County, Tennessee, according to ArboNET surveillance data. The reported infection is notable because it is one of only four total cases identified in the United States, based on the information cited in the report.

Health officials are urging residents to take steps to avoid mosquito bites. While the number of confirmed cases remains low, the virus can lead to serious illness, making prevention an important part of the public health response.

The case places added attention on mosquito-related health risks in East Tennessee during periods when exposure is more likely. Public guidance tied to the report focuses on reducing contact with mosquitoes and staying alert to possible illness after bites.

The CDC data point does not suggest a widespread outbreak, but it does highlight that rare mosquito-borne infections are still being tracked closely at the county and national level. In Claiborne County, the confirmed case is now part of that broader surveillance picture.