Polio vaccine contamination 1955-63



Reported today, but I know I’d heard of it before… between 1955–1963 many doses of polio vaccine were contaminated with a simian virus.


I also don’t know why they say the data were removed from the cdc site - still there:


Here is the archived link for the second link to the CDC website: https://archive.is/xwSD7


Ty. Someone pointed out the original data sheet was removed… here’s a link to its archive.