California West Nile virus cases top 300, Merced County reports 1st case

The number of human West Nile virus (WNV) in California increased by 67 cases during the past week, bringing the state total to 311 from 29 counties, the most of any state in the union. New cases were reported from the following counties: Butte (1), Fresno (2), Kern (1), Los Angeles (15), Madera (1), Merced ["]