FDA expected to authorize additional booster for adults 50 and older I ABCNL
Dr. John Brownstein, chief innovation officer at Boston Children’s Health, discusses the CDC’s recommendation that immunocompromised Americans receive a fourth dose. WATCH the ABC News Live Stream Here: https://www.youtube.com/watch?v=w_Ma8oQLmSM SUBSCRIBE to ABC NEWS: https://bit.ly/2vZb6yP Watch More on http://abcnews.go.com/ LIKE ABC…