Case Report: Neurologic Presentation of West Nile Virus: Difficult Diagnosis.

West Nile virus infections have surged across the globe. South Texas, located on the path of bird migration, with and other species, and biotic primers that predispose the area to epidemics (floods, amplifying hosts, and lack of mosquito control and prevention) remains a highly endemic area for arbovirus spread. West Nile virus infection ranges from mild febrile illness to severe central nervous system involvement.