The detection of bird flu virus this week in a batch of unpasteurized milk sold in California underscores what health experts say are the known and potential risks of the products.

So far, there have been no reports of illness associated with the bird flu virus that was identified this weekend in a retail sample of raw milk from a Fresno-based dairy. But the dairy behind the bird flu detection,

State health officials published a list of retailers in Los Angeles County that sold raw milk that has since been recalled after a retail sample of the product tested positive for bird flu virus. No one has reported illnesses from the lot of raw milk produced by Fresno-based dairy Raw Farm, the California Department of Public Health said.