When did Horizon Season 34 Episode 5 air?
Horizon Season 34 Episode 5 aired on March 27, 1997.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
In this episode, Horizon reports on the last lab samples of smallpox destined to be destroyed. But do we still have much to learn from this virus?
Direct answers for episode-level questions and details.
Horizon Season 34 Episode 5 aired on March 27, 1997.
This episode runs for approximately 60 minutes.
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