Program Note: Tune in tonight to hear more on how viruses spread from Dr. Nathan Wolfe on AC360° at 10 p.m. ET.
In this clip from Planet in Peril: Battle Lines, Anderson Cooper talks to Dr. Nathan Wolfe about disease transmission.
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
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