Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 17 · Episode 6 ·
The Big If...
About Interferon, a drug made from human blood cells, thought to be capable of controlling viruses and cancer
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Episode 6 of season 17 of Horizon: “The Big If...”. Aired 1980-02-25. Watch it online free on ZapFlix.