Natural scientific research in Canada Queen's/Hotel Dieu Hospital, Kingston, 1845, U of T/Hospital for Sick Children, Toronto, 1875, UBC/Vancouver General Hospital, 1886, Dalhousie/Victoria General Hospital, Halifax, 1887 and the U of A/ the University of Alberta Hospital, Edmonton, 1906. The Connaught Laboratories in Toronto conducted groundbreaking research in the fifties with respect to the world's first polio vaccine. Working with Dr. Jonas Salk in the US, the laboratories developed a safe inactive vaccine using a new synthetic base, Medium 199. This permitted large volume production through a technique that came to be known as the "Toronto Method", which in turn allowed the mass vaccination campaigns
Cold War tensions and the polio vaccine flew to Leningrad in June, 1956. As a result of a cooperation of Sabin and Chumakov in Leningrad, Sabin was able to test his attenuated vaccine when funding in America was declined. While Sabin was working behind the Iron Curtain, the Sabin-Chumakov vaccine was determined to be safe and effective. Cold War tensions caused Western scientists to refuse the reports from the Russians about the effectiveness of the Sabin vaccine. However, mass vaccinations of Sabin's vaccine spread throughout Eastern Europe from 1960–1963. Just as some Soviet virologists did not trust the Western Salk vaccine, Americans had similar reservations about the