Why The CDC Just Declared A Flu Epidemic
This year's flu strain mutated away from experts' predictions, making the flu shot not as effective. That's not necessarily a reason to not get one.By Cliff Judy | December 31, 2014
The CDC says the flu virus crossed into being an epidemic this past week.
Combined with a flu shot that's already been declared not as effective as most years, the agency has warned this flu season could be a severe one.
In its weekly FluView report, the Centers for Disease Control and Prevention said 22 states — mostly in the Midwest and Southeast — reported a high level of influenza activity.