State health officials say the flu is now becoming widespread throughout California.
For weeks, they have said California is one of the few states spared by major flu activity but another person has died as a result of the flu, bringing this season's death toll to five in our state.
New data shows this could be the worst flu season of the decade. Activity has seen a steep increase in recent weeks and is expected to peak next month.
Health officials urges people to get flu shots, wash their hands, and cover coughs.