Poliomyelitis leading to large-scale trials in the then Belgian Congo and the vaccination of seven million children in Poland against serotypes PV1 and PV3 between 1958 and 1960. The second inactivated polio virus vaccine was developed in 1952 by Jonas Salk at the University of Pittsburgh, and announced to the world on 12 April 1955. The Salk vaccine, or inactivated poliovirus vaccine, is based on poliovirus grown in a type of monkey kidney tissue culture (vero cell line), which is chemically inactivated with formalin. After two doses of inactivated poliovirus vaccine (given by injection), 90 percent or more of individuals develop
Salk School of Science Salk School of Science The Salk School of Science is a junior high school, located in Lower Manhattan, New York City. It was founded in 1995 as a unique collaboration between the New York University School of Medicine and the New York City Department of Education. The goal of the school is to encourage an enthusiasm for, and the development of abilities in, the sciences, particularly the medical and biological sciences. Science and math are specialties at the school, including special classes for it and after-school programs. A particular aim is to encourage city children to aim for better high