16 Jul 2026
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For decades, one man was blamed for bringing AIDS to America. But the “Patient Zero” story was wrong. This is the story of how genetic detective work traced HIV’s true origins—from chimpanzees in Central Africa to a global pandemic—and how science unraveled one of the biggest myths in modern medicine.

Be Smart explores science questions you didn’t even know you wondered about. It is hosted and produced by Joe Hanson, PhD. We post new videos all the time, so please subscribe! If you enjoyed this video, hit the ‘like’ button, leave a comment, or watch another of our videos!

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