Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 18 · Episode 3 ·
The Qualyub Project
Horizon explores the research of Egyptian doctors in trying to control bilharzia, a disease caused by parasitic worms.
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Episode 3 of season 18 of Horizon: “The Qualyub Project”. Aired 1981-01-19. Watch it online free on ZapFlix.