Scott Edelman sez, "In 1954, a year before to the Salk vaccine was revealed to the world, DC Comics was publishing ads advising kids how not to catch polio., as in this one from Action #196 (which would have gone on sale a couple of months earlier than its September 1954 cover date). The words of wisdom included 'keep clean' and 'don't get fatigued.' They might as well have said, don't be a kid!"

DC Comics wants you to read Nutsy Squirrel … and take these precautions against polio (Thanks, Scott!)