The Big IF

Is interferon—known as IF in medical shorthand—the wonder drug and cure for cancer that some doctors claim? NOVA travels to London, Stockholm, Houston, San Francisco, and New Haven in search of the answer in the most complete film on interferon ever to appear on American television.

Where to watch

You cover 0/985 episodes +22 with the plan · 2%

Your services

With the plan

Not covered

PBS

Subscription

964/985

Watch

Every episode is already streaming. Subscribe only while you're watching.

985 episodes · subscribe while you watch, cancel anytime

See your month-by-month plan → Track