10-21-2022, 02:54 PM
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Planar Protector
Join Date: May 2015
Posts: 16,899
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Quote:
Originally Posted by Botten
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No. It didn't Jib.
On April 26, 1954, the Salk polio vaccine fielded trials… One year later, on April 12, 1955, researchers announced the vaccine was safe and effective and became a standard part of childhood immunizations in America.
It is all there Jib. And there are two different vaccines. The one for the US was arguably more ethical.
https://www.project1999.com/forums/s...postcount=1579 |
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Dr. Francis made the announcement to a crowd of scientists and reporters at the University of Michigan's Rackham Auditorium, concluding his two-year national field trials.
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Wrong you are
Quote:
How long was the polio vaccine tested before it was approved?
Dr. Francis made the announcement to a crowd of scientists and reporters at the University of Michigan's Rackham Auditorium, concluding his two-year national field trials of the poliomyelitis vaccine developed by his former student, Jonas Salk.
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