The bird flu's reach extends to raw milk in California, as a major dairy farm voluntarily recalls its products and a health alert is issued.

The H5N1 virus was found in a sample of unpasteurized milk at a store, prompting a recall of one batch. Health agencies have warned against the growing dietary fad.

Health officials in California have discovered bird flu virus in raw milk for sale in a store in the state, a development scientists following the ongoing outbreak of bird flu in dairy cows have been anticipating and worrying about for some time.