When did Horizon Season 29 Episode 5 air?
Horizon Season 29 Episode 5 aired on February 3, 1992.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
In this episode, Horizon look at attempts to persuade major respected organizations to do controlled trials on a synthetic malaria vaccine.
Direct answers for episode-level questions and details.
Horizon Season 29 Episode 5 aired on February 3, 1992.
This episode runs for approximately 60 minutes.
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