While virologists were still trying to decide whether Dr. Salk's "killed" virus vaccine was safe, or how it could be made safer (see above), other experts argued that the killed-virus idea should be abandoned altogether. Leader of this school:
Russian-born Dr. Albert Sabin, 48, director of Cincinnati's Children's Hospital Research Foundation. His alternative: instead of killing a virulent virus, use a living virus that is nonvirulent to begin with.
Short or Long. To buttress his argumentsthat a live virus is better and confers longer immunityResearcher Sabin went to the Eskimos. In one of their isolated communities immunity against polio was shown to have...