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1Department of Epidemiology and Virus Laboratory, School of Public Health, University of Michigan, Ann Arbor, Michigan
1
Based upon the Eli Lilly and Company Award Address in Bacteriology and Immunology. Presented at the 58th Annual Meeting of the Society of American Bacteriologists in Chicago, Illinois, on May 1, 1958. Many of these studies were aided by a grant from the National Foundation for Infantile Paralysis.