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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
Immigration Update-Sep23 duration 1 hour 30 minutes Immigration Update-Sep23 Immigration Update-Sep23	Immigration Update-Sep23 status +19 More From Kent Schnoeker

March 26, 1953: Dr. Jonas Salk Announces he successfully tested a vaccine against the virus that causes polio