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'''John Snow''' is considered the father of modern [[epidemiology]].

<nowiki>'''John Snow''' is considered the father of modern [[epidemiology]].

He contributed "the theory that [[cholera]] is communicated by means of a contaminated water-supply."<ref> [http://www.ph.ucla.edu/epi/snow/snowbio.html Biography of John Snow]</ref>

He contributed "the theory that [[cholera]] is communicated by means of a contaminated water-supply."<ref> [http://www.ph.ucla.edu/epi/snow/snowbio.html Biography of John Snow]</ref>

<ref>"He demonstrated that cholera is communicated by contaminated water, and he made the art of anaesthesia a science." [http://www.general-anaesthesia.com/images/john-snow.html]</ref>

<ref>"He demonstrated that cholera is communicated by contaminated water, and he made the art of anaesthesia a science." [http://www.general-anaesthesia.com/images/john-snow.html]</ref>

*[http://www.ph.ucla.edu/epi/snow.html John Snow - a historical giant in epidemiology]

*[http://www.ph.ucla.edu/epi/snow.html John Snow - a historical giant in epidemiology]

[[category:Scientific pioneers]]

[[category:Scientific pioneers]]</nowiki>