Western Nile virus activity is detected in Visalia: what are the symptoms and risks?

VISALIA, California.- Health authorities confirmed the first West Nile virus activity of the season, after three samples were positive. According to the Delta Mosquito and Vector Control District, all positive samples were collected in late April and early May in an area just south of Highway 198, between Ben Maddox Way and Mooney Boulevard. Two were collected in routine surveillance traps and a third in targeted tracking traps. “Our surveillanc…