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‘Early warning sign’ of West Nile virus: First bird tests positive in Sacramento County
Sacramento Bee

The first bird of the season has tested positive for West Nile virus in Sacramento County, and officials said they are on alert for the mosquito-borne disease that killed 11 people and infected more than 200 in California last year.

A yellow-billed magpie found dead last week near Elverta in north Sacramento County tested positive for the virus, the Sacramento-Yolo Mosquito and Vector Control District confirmed Monday in a news release.