The first mass innoculation of Salk's polio vaccine begins in Pittsburgh in 1954, the children were known as the polio pioneers. The vaccine was announced to be safe in 1955 Submitted by LoneWolfInCyberia t3_119sajw on February 23, 2023 at 8:06 AM in Pennsylvania 17 comments 111
[deleted] t1_j9r0vh2 wrote on February 23, 2023 at 11:07 PM Reply to comment by svenEsven in The first mass innoculation of Salk's polio vaccine begins in Pittsburgh in 1954, the children were known as the polio pioneers. The vaccine was announced to be safe in 1955 by LoneWolfInCyberia [removed] Permalink Parent 1
Viewing a single comment thread. View all comments