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.

Bird flu virus has been found in a batch of raw milk sold in California, and consumers should not drink it, the state Department of Public Health warned Sunday.

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.