Bird flu has spread to a poultry farm west of Springville, and continues to hit more Tulare County dairies and dairy workers.

A commercial broiler poultry farm just west of Springville, with a flock of 786,600 birds, has been confirmed to have cases of bird flu, according to the USDA Agriculture Animal and Plant Health Inspection Service.

Meanwhile, human cases of bird flu have increased to 13 in California, with nine cases in Tulare County, according to the Tulare County Health & Human Services Agency's Oct. 22 update.