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The flu is hitting the U.S. full force

Name: The flu is hitting the U.S. full force
Uploaded: 2015-01-05T18:18:51-0500
Duration: 1 min 16 s
Description: The Centers for Disease Control and Prevention says almost all states have widespread flu activity and the vaccine only works in about a third of cases. CBS News' Alison Harmelin reports.

The Centers for Disease Control and Prevention says almost all states have widespread flu activity and the vaccine only works in about a third of cases. CBS News' Alison Harmelin reports.