Federal and state officials have confirmed outbreaks in the last few weeks of a fast-spreading avian influenza strain - commonly known as bird flu - in four new California counties, sparking concerns about the possible agricultural and financial blow of the virus.
The "highly pathogenic" bird flu was confirmed Wednesday at two commercial farms in Stanislaus County, joining recent outbreaks at poultry farms in Fresno, San Benito and Sonoma counties, according to updates from the California Department of Food and Agriculture. The strain is easily spread among birds and often fatal for them.
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