Santa Clara County has confirmed two human cases of West Nile virus, the first reported in the Bay Area in 2026. Public health officials said the infected residents received medical care and are now recovering at home.
The announcement serves as an early warning for the region as mosquito season continues. Officials said the cases are a reminder that West Nile virus is not always mild and can lead to very serious illness.
West Nile virus is spread by mosquitoes, and health agencies typically track human infections closely once the first cases appear in a given year. The confirmation in Santa Clara County puts attention on local mosquito activity and the broader risk across the Bay Area.
While the two residents are recovering, the cases underscore the importance of public awareness around West Nile virus in Northern California. Health officials are highlighting the seriousness of the disease as the Bay Area records its first human infections of the year.
