Dr. John Snow: The Defining Moments in Public Health

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The Ghost Map isn’t just a story about some aspect of public health; I would argue that it is a recounting one of the defining moments of public health. The book describes the history of one man, Dr. John Snow, as he defiantly set about to investigate the cause of London’s cholera outbreaks in the mid-nineteenth century. His contributions to medicine would ultimately lend to the field that would evolve into public health.
It isn’t correct to suggest that London had no regards towards public health prior to Dr. Snow’s efforts. The city had organized a sewer to clear away waste water from the streets, private companies cleared out cesspits and outhouses, and others companies delivered plumbed water to those who could afford it to name just …show more content…

Again, at the time of Dr. Snow’s practice, germ theory wasn’t even in its infancy. It might be more appropriate to say the theory was still in utero. It was understood that there was some causative agent behind illness, but with limited ability to detect and identify the actual agents of disease – in the case of cholera the cause was a bacteria – it was nearly impossible to definitively place blame. Proponents of the miasma theory believed that impure air could cause disease, and in some ways they were correct. For example, inhaling smoke, a form of impure air, can cause a range of pulmonary diseases in addition to an immediate cough. Dr. Snow, on the other hand, was hesitant to blame air on everything. If bad air alone was to blame, why did it not affect all who breathed it equally? With such questions in mind, he set out to scientifically gather evidence towards his theory surrounding water …show more content…

Snow attempted to inform and educate those he came in contact with, advising them to avoid the Broad Street pump’s water. Inform, educate, and empower is another aspect of public health I will be expected to engage in. Later, Dr. Snow brought his findings to the attention of the local health board as well as the neighborhood parish. The parish was ultimately more willing to hear out his theory, and despite the theory’s contradictory stance to miasma, they went ahead and removed the offending water pump’s handle. One could even argue that this interaction was in alignment with yet another essential element of public health: mobilization. By working with the parish, Dr. Snow mobilized a community partner – in this case, the parish – to action. One of the more interesting aspects of his work was that in mobilizing the parish, he turned one of his more heated critics, Reverend Whitehead, into a

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