How soon can a live-virus poliomyelitis vaccine, taken by mouth, supplement or replace the Salk-type, killed-virus vaccine, which must be injected? Not until many tricky questions about safety and effectiveness have been answered, the U.S. Public Health Service has ruled. Last week the National Foundation, which supported Dr. Jonas E. Salk's work with marching dimes, announced grants totaling $300,000 to speed answers to key questions about the live-virus vaccine prepared (also with help from foundation funds) by Cincinnati's Dr. Albert Sabin. Recipients :
ΒΆ Yale University ($81,308), for Dr. John R. Paul...
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