According to the most recent statistics from the Centers for Disease Control and Prevention, 49 states are reporting widespread influenza activity. Nearly 42 people per 100,000 have been hospitalized and 37 children have died. Dr. David Agus joins "CBS This Morning: Saturday" to discuss the importance of flu shots this season and the global health issues experts and world leaders discussed at the World Economic Forum in Davos, Switzerland, which he attended.
