First West Nile virus death reported in Los Angeles County for 2026

In Los Angeles County, California, a resident from the San Fernando Valley died from West Nile virus complications, marking the first death from this illness in 2026. The county has reported 15 cases of the virus this year, exceeding the five-year average. Public health officials are urging residents to take precautions against mosquito bites, especially after a warm winter led to increased mosquito activity.