Flu season has started early this year, and it's hit hard. The flu has gotten so bad in Boston, for example, that the mayor declared a public health emergency this week. Audie Cornish speaks with Thomas Frieden, director of the Centers for Disease Control and Prevention, about the scope of this year's outbreak and what people can do to avoid getting infected.
Early Flu Season Could Turn Into A Severe One As Illness Spreads
Originally published on January 10, 2013 6:26 pm