Orange County has confirmed its first human West Nile virus case of the year, and the county health officer says environmental surveillance points toward a season that could be more intense than usual.
The patient is an Anaheim resident. The county's Health Care Agency did not release further identifying details. The confirmation arrived alongside a surveillance figure that carries more predictive weight than a single case: more than 300 West Nile-positive mosquito samples collected across the county so far this year.
