Flu hospitalizations among the elderly rose sharply last week, prompting federal officials to take unusual steps to make more flu medicines available and to urge wider use of them as soon as symptoms appear.

The U.S. is about halfway through the flu season, which is shaping up to be worse than average and a bad one for the elderly, said Dr. Thomas Frieden, director of the Centers for Disease Control and Prevention.

New figures from the CDC show the flu epidemic is continuing, with widespread activity in all states but Tennessee and Hawaii.