The virus spreads to people through mosquito bites and usually occurs during mosquito season, which ends in the fall, officials said.

A San Fernando Valley resident died from West Nile virus, marking the first death from the mosquito-borne illness reported in Los Angeles County this year.

The Massachusetts Department of Public Health (DPH) is reporting that a 13th human case of West Nile Virus (WNV) has been found in Massachusetts. According to DPH, the infected person is a man in his 40s who was exposed in southern Essex County.