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WebErwin Annys Head of Unit Support and Enforcement chez ECHA 2w Report this post #PFAS can still be found in many products. Once they are in the environment, they stay … WebPolio vaccine developed. Although it had long been suspected that polio was an infectious disease, definitive proof only came in 1908, when Dr Karl Landsteiner and Dr Erwin Popper 1 managed to induce polio in monkeys by injecting them with extracts of the spinal cord of a boy who had died from polio. The disease could then be transmitted from ... WebOct 15, 2024 · The epidemic rise of polio led to renewed research into the disease and in 1908, Karl Landsteiner and Erwin Popper determined that polio was a viral infection. It was not until 1953 that the poliovirus that … cagin charles mayo clinic