grahos wrote:I know several who got polio in the 1950s
I know several who got polio in the 1950s
Yes of course you would, the /Salk vaccine wasn't developed until 1955, followed by the Sabine oral vaccine in 1960, together they eradicated polio.
Yes of course you would, the /Salk vaccine wasn't developed until 1955, followed by the Sabine oral vaccine in 1960, together they eradicated polio.