The U.S. flu season is underway, with at least seven states reporting high levels of illnesses and cases rising in other parts of the country, health officials say.
The Centers for Disease Control and Prevention posted new flu data on Friday, showing very high activity last week in Louisiana, and high activity in Alabama, Florida, Georgia, Mississippi, New Mexico and South Carolina. It was also high in the District of Columbia and Puerto Rico, the U.S. territory where health officials declared an influenza epidemic earlier this month.
