Between 1.7 and 2.5 million flu-related illnesses have already been reported this season, and forecasts suggest that flu activity will continue to rise, according to the Centers for Disease Control and Prevention. There's a 40% chance that it will peak in December, which the CDC says would be considered early, compared to previous years. CBS News Medical Contributor Dr. David Agus joins “CBS This Morning Saturday” to discuss what we know about the this year’s flu season.
