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 Institute for Biological Studies becoming greener. The Salk Institute's open environment replete with empty space is symbolic of an open environment for creation, the symmetry stands for scientific precision, and submerging crevasses allow warm, natural light to enter the buildings like the intellectual light that leads to discovery. The contrast between balance and dynamic space manifests a pluralistic invitation for scientific study in structures developed to accommodate their respective functions as parts of a research facility. Although modern in appearance, it is essentially an isolated compound for individual and collaborative study, not unlike monasteries as sanctuaries for religious discovery, and they are thought to