The President's News Conference
07/20/1949
https://www.presidency.ucsb.edu...
I refer to the continuing fight against the scourge of infantile paralysis.
As the total cases mounted, panic spread; fantastic cures were advertised, for sale and not for sale.
If there is one of you who has not yet joined the March of Dimes, I urge you to go now and enlist.
The National Foundation, supported by your gifts, reaches into every corner of the country to find and help the stricken.