A medical discovery that may turn out to be the greatest since penicillin was reported last week in the conservative Journal of the A.M.A.: Chicago researchers have found a way to make immunizing vaccines by subjecting live germs to ultraviolet light.* Their most important vaccine to date is for infantile paralysis in mice. Superior to any previous polio vaccine, it may mean that the day of infantile paralysis is nearly over.
Crux of the Chicago discovery is the use of ultraviolet rays strong enough to kill the germs but not strong enough to ruin...
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