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Watch NOVA Season 15 Episode 5 Online

  • 7.1/10
  • Subtitles: English

In part one of a two-part special presentation, NOVA reports on the trials to determine whether the new drug Interleukin-2—the first to make use of the body's own disease-fighting strategy—will live up to its promise as a pivotal cancer breakthrough. Jane Pauley of NBC News hosts and narrates.