OPV AIDS hypothesis OPV AIDS hypothesis The oral polio vaccine (OPV) AIDS hypothesis posits that the AIDS pandemic originated from live polio vaccines prepared in chimpanzee tissue cultures and then administered to up to one million Africans between 1957 and 1960 in experimental mass vaccination campaigns. Data analyses in molecular biology and phylogenetic studies contradict the OPV AIDS hypothesis; consequently, scientific consensus regards the hypothesis as disproven. The journal "Nature" has described the hypothesis as "refuted". Two vaccines are used throughout the world to combat poliomyelitis. The first polio vaccine, developed by Jonas Salk, is an "inactivated poliovirus vaccine" (IPV), consisting of a
Salk School of Science in the center. Students will normally exit through the right hand exit. There is school bus service which will bring students to and from school. NYCDOE Notably, the school has established relationships with many neighborhood businesses. If a student experiences trouble outside the school, the student can find refuge in almost any business nearby, and the proprietor will call both the school and 911. This has served as a model for many NYC schools. 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