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 School of Science Perry and the vice/ assistant principal is Jennifer Goodwin. The school allows students to bring money to school and at lunch time, to go out and buy themselves lunch at a variety of delis and restaurants. The school shares its building with another school, P.S. 40 which owns most of the building. There is a gymnasium, a cafeteria which is shared between the schools, and 2 floors exclusive to Salk School of Science. Both are located near the top of the building. There are 3 entrances one to the left side of the building, one to the right and one