| Date | Text | |
|---|---|---|
12 Apr 1955
Salk vaccine field trial |
Salk vaccine field trial In 1955, the Salk vaccine against polio was announced to work, and be “safe, effective and potent,” after a year-long field trial. Dr. Thomas Francis, Jr. made the statement at a press conference in Ann Arbor, Michigan, on the tenth annniversary of the death of Franklin Roosevelt (1945), the U.S. president who was a victim of the disease. Dr. Francis was a former professor of Jonas Salk. |
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12 Apr 1955
Salk |
Salk (medicine) The Salk polio vaccine, having passed large-scale trials earlier in the United States, receives full approval by the Food and Drug Administration. |
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