The U.S. Public Health Service skipped almost a month of red-tape requirements and issued quick licenses to two manufacturers of measles vaccine last week.
The speedup was to get the vaccines into doctors' hypodermic syringes in time for the March-through-May period when measles outbreaks come to a peak.
Doctors as well as parents are likely to be as confused about which measles vac cine to use as they are over Salk and Sabin polio vaccines. PHS licensed Merck Sharp & Dohme to distribute a live but attenuated vaccine, like the one developed by Dr. John F. Enders (TIME cover, Nov. 17,...
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