The case involves a person in Crowley who has contracted the neuroinvasive form of the disease. It is the most severe form of the virus and affects the nervous system.
Due to patient privacy, further information on the patient is not expected to be released.
Last year county officials recorded a major drop in the number of cases in the county. Tarrant County had only six human cases of the virus and one fatality in 2012, compared to 81 people sickened and four killed in 2012. The number of positive mosquito pools also were on the decline, with 15 in 2012 and just five in 2013.
It should be noted though that testing did not take place across the whole season in 2012.
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