Dr. John Brownstein the chief innovation officer at Boston Children’s Hospital discusses if it is safe to attend in-person learning and which masks are the best due to the transmissibility of omicron. 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 News on FACEBOOK https://www.facebook.com/abcnews FOLLOW ABC News on TWITTER: https://twitter.com/abc #ABCNLUpdate #ChicagoPublicSchools #CancelClasses #COVID-19 #OmicronVariant