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Infectious disease epidemiologist and director of the special pathogens program at nyc health and hospital. so, doctor, im so glad youre here. thank you. >> thanks for having me on. >> now, listen. i put out the call on twitter, and i was asking people for their most pressing questions on what the delta variant means for keeping their families safe. especially, children. and -- and one viewer, asking this question, doc. with the school year just around the bend, and some reports of the delta var...