Dr. Thomas Francis and Dr. Jonas Salk
Description
Dr. Thomas Francis from the University of Michigan and Dr. Jonas Salk, vaccine developer, announce the success of polio vaccine in field trials in April 1955 in Ann Arbor, Michigan.
Rights Held By
Ypsilanti Historical Society
Copyright
Creative Commons (Attribution, Non-Commercial, Share-alike)
Photo
Subjects
Ypsilanti Gleanings