In 1854,John Snow, a young English Doctor, published his new ideas on germ theory focused on the mode of communication of cholera. All the deaths from cholera were close to the Broad Street pump in London. Because of his unique view of the mechanism of disease transmission, he searched and found the well that was the water source of all the cholera cases he was investigating. Thus, Snow became the founding father of epidemiology. His search for scientific truth disproved the dominant theory, that plagues were caused by pollution or a noxious form of bad air, “miasma.”
