Hundreds of thousands of children in different parts of the U.S. will receive experimental shots of polio vaccine early next year, the National Foundation for Infantile Paralysis announced last week. Plans for the first mass-testing of a vaccine against poliomyelitis are now being made. The shots will have to be given by the end of May so that the vaccine will have time to do its work (if it can) before the epidemic season starts.
"Even if the vaccine tests are successful," said Foundation President Basil O'Connor, "this cannot be known before the end of 1954, so there will be no proven...
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