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John Snow (15 March 1813 â 16 June 1858) was an English physician and a leader in the adoption of anaesthesia and medical hygiene. He is considered one of the fathers of modern epidemiology, in part because of his work in tracing the source of a cholera outbreak in Soho, London, in 1854.now was born 15 March 1813 in York, England. He was the first of nine children born to William and Frances Snow in their North Street home.
Well like many medical breakthroughs, there were a succession of findings by many scientists which led to an ultimate polio vaccine. But it was a scientist by the name of Dr Jonas Salk who, with the help of his colleagues at University of Pittsburgh Medical School, discovered the polio vaccine itself.Dr Jonas Salk was the son of Orthodox Polish-Jewish immigrants and was born in New York in 1914.owever there are other notable scientists who were either directly or indirectly involved with the discovery of the polio vaccine... Perhaps the most notable were Harvardâs Johns Enders and his team, who collectively discovered how to grow polio in test tubes a few years before the polio vaccine was discovered.