California has reported five additional human cases of bird flu, bringing the total to 11 this year. The cases were detected among individuals who had contact with infected animals on dairy farms, and symptoms reported include mild eye irritation. Though the CDC assures the public that the risk of transmission remains low, officials are urging people who work with infected animals to wear protective gear. With bird flu affecting over 120 dairy herds in California and 320 herds nationwide, more human cases are anticipated in the near future.