John Snow and the removal of the Broad Street pump handle
“There were many other factors that led Snow to isolate the cause of the cholera to the Broad Street pump. For instance, of the 530 inmates of the Poland Street workhouse, which was only round the corner, only five people had contracted cholera; but no one from the workhouse drank the pump water, for the building had its own well”.
“Among the 70 workers in a Broad Street brewery, where the men were given an allowance of free beer every day and so never drank water at all, there were no fatalities at all. And an army officer living in St John’s Wood had died after dining in Wardour Street, where he too had drunk a glass of water from the Broad Street well”.
December 5th, 2009
Categories: Correlation
Tags: broad street pump, cholera, healthcare, silos-effect, snow