What you need to know about this year’s elevated flu threat

Aired: 12/11/2014 | 0:03:35 | Clip
‘Tis the season to be sick in households across America, and this year’s flu shot may not save you. Doctors are warning that the season could be more severe than they thought because a strain of the virus is not responding to the vaccine. Gwen Ifill gets tips for how to prepare from L.J. Tan of the Immunization Action Coalition.