Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 29 · Episode 15 ·
Taking the Credit
Horizon investigates the claims by rival American and French scientists as to who first discovered the HIV virus.
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Episode 15 of season 29 of Horizon: “Taking the Credit”. Aired 1992-05-11. Watch it online free on ZapFlix.