Flu is expected to flare up in U.S. this winter, raising fears of a 'twindemic'

To listen to this broadcast, click here: http://www.npr.org/templates/transcript/transcript.php?storyId=1124311571 BYLINE: ROB STEIN HOST: STEVE INSKEEP STEVE INSKEEP: For the last two years, the flu mostly disappeared. People who isolated to duck [...]