Sacramento County health officials say a 74-year-old woman was killed by the West Nile virus.
The woman had an underlying chronic disease, according to the county health department. She was the region’s first West Nile victim of 2014.
Seven other cases in Sacramento County are being investigated, health officials said.
A person from Shasta County was revealed a short time later to be the second West Nile-related death of the year.
People catch the virus when mosquitoes bite them after feeding on infected birds. Health officials say 80 percent of people that get infected will show no symptoms. Those with weak immune systems or are over 50 years old are particularly vulnerable to the virus.
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