As the flu epidemic rages on in many parts of the country, experts say the best defense against the virus is getting a seasonal flu shot.
That's why it was particularly troubling that only about a third of people got vaccinated early in the season this year, according to a report by the Center for Disease Control and Prevention.
Dr. Richard Besser, ABC New's chief health and medical correspondent, held a tweet chat on Twitter today, in part to dispel the four biggest myths and misgivings...
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