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March 26, 1953: Dr. Jonas Salk Announces he… duration 26 seconds March 26, 1953: Dr. Jonas Salk Announces he… March 26, 1953: Dr. Jonas Salk Announces he successfully tested a vaccine against the virus that causes polio	March 26, 1953: Dr. Jonas Salk Announces he successfully tested a vaccine against the virus that causes polio KTLA: March 26, 1953: Dr. Jonas Salk Announces he… polio +12 More From Victoria Johnson Date of Recording 3-26-25

duration 26 seconds

March 26, 1953: Dr. Jonas Salk Announces he…

KTLA: March 26, 1953: Dr. Jonas Salk Announces he…

+12 More

From Victoria Johnson

Date of Recording

3-26-25