Flu transmission already at epidemic levels in 18 states

Posted at 7:59 PM, Jan 07, 2013
and last updated 2013-01-07 19:59:42-05

There are growing fears about this year’s flu season.  The CDC declares this is one of the most dangerous in the past few years.

But which strand is the one you need to look out for?

Hilary Whittier talked with Dr. Steve Salvatore about the virus that’s taking over.