Leone Norwood Farrell
Leone Norwood Farrell, biochemist and microbiologist (born 13 April 1904 in Monkland, Ontario; died 24 September 1986 in Toronto). Farrell was a pioneer in the development of vaccines. Most notably, her “Toronto Method” made possible the large-scale production of the Salk polio vaccine in the early 1950s. Farrell’s polio vaccine work followed innovations in the production of pertussis (whooping cough) vaccine, as well as penicillin.