Quote:
Originally Posted by Jibartik
[You must be logged in to view images. Log in or Register.]
The polio vaccine had a 2+ year experimental phase.
|
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.
https://www.project1999.com/forums/s...postcount=1579