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TIL about the annual Pumphandle Lecture of the #JohnSnow Society celebrating use of #epidemiology and #microbiology #science to #shutdown the 1854 #cholera outbreak in the Soho district of #London. https://en.m.wikipedia.org/wiki/Pumphandle_Lecture

John Snow used #PublicHealth data to convince officials to remove the handle of the Broad Street pump above a well that was later found to be contaminated with infected fecal matter.

#ScienceDeniers were ignored then, and should be ignored now.