Episode Information
About this episode
The Immunity Syndrome is season 2, episode 19 of Star Trek: The Original Series, first aired on 19 January 1968.
In series order, the previous episode is S02E18 — Obsession and the next is S02E20 — A Piece of the Action. By original air date, the previous episode is S02E20 — A Piece of the Action and the next is S02E16 — A Private Little War.
Browse every episode in Season 2.
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