Jonas Salk vaccine. A few weeks later, Salk injected children at the Polk State School for the retarded and feeble-minded. In 1954 he tested the vaccine on about one million children, known as the polio pioneers. The vaccine was announced as safe on April 12, 1955. The project became large, involving 100 million contributors to the March of Dimes, and 7 million volunteers. The foundation allowed itself to go into debt to finance the final research required to develop the Salk vaccine. Salk worked incessantly for two and a half years. Salk's inactivated polio vaccine was the first vaccine for the disease;
Salk Hall 1920s. Also contained in Salk Hall is the Elmer H. Grimm Sr. Pharmacy Museum, which opened in the fall of 1996. Located on the fourth floor, the museum holds pharmacy memorabilia such as drug products, equipment, and sundry products dating back to the early 20th century. Among the museum's possessions are two hand-carved finials, which were often found over the door or partitions that separated the main part of the pharmacy from the back room where pharmacists did most of their work, an old-fashioned powder mill, and a konseal machine. Salk Hall Jonas Salk Hall at the University of Pittsburgh