Notes from the Field: Spatially Associated Coincident and Noncoincident Cases of La Crosse Encephalitis --- North Carolina, 2002--2017

In August 2017, the North Carolina Department of Public Health (NCDPH) was notified of a suspected La Crosse virus (LACV) encephalitis case in a boy aged 2 years from western North Carolina. The following day, NCDPH was notified that the patient's brother, aged 11 years, was also ill with symptoms consistent with viral meningoencephalitis. Laboratory testing confirmed that both siblings had evidence of recent LACV infection.

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