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.

The first child case of avian influenza (H5N1) was detected in California this week, according to the CDC, which is conducting an investigation into the case, including contact and exposure tracing

The U.S. Centers for Disease Control and Prevention on Friday confirmed the country's first case of H5N1 bird flu infection in a child, who experienced mild symptoms and is recovering from their illness.