Miasma theory: Difference between revisions

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The miasmatic theory of disease remained popular in the [[Middle Ages]] and a sense of ''effluvia'' contributed to Robert Boyle's ''[[Suspicions about the Hidden Realities of the Air]]''.
 
In the 1850s, miasma was used to explain the spread of [[cholera]] in [[London]] and in [[Paris]], partly justifying [[Haussmann's renovation of Paris|Haussmann's later renovation of the French capital]]. The disease was said to be preventable by cleansing and scouring of the body and items. [[William Farr|Dr. William Farr]], the assistant commissioner for the 1851 London census, was an important supporter of the miasma theory. He believed that cholera was transmitted by air, and that there was a deadly concentration of ''miasmata'' near the [[River Thames]]' banks. Such a belief was in part accepted because of the general lack of air quality in urbanized areas.<ref name=":1" /> The wide acceptance of miasma theory during the cholera outbreaks overshadowed the partially correct theory brought forth by [[John Snow (physician)|John Snow]] that cholera was spread through water. This slowed the response to the major outbreaks in the Soho district of London and other areas. The [[Crimean War]] nurse [[Florence Nightingale]] (1820–1910)<ref>{{cite web|url=http://www.ph.ucla.edu/epi/snow/1859map/cholera_prevailingtheories_a2.html|title=BRIEF HISTORY DURING THE SNOW ERA|website=www.ph.ucla.edu|accessdate=15 January 2018}}</ref><ref>{{cite web|url=http://www.ibms.org/pdf/pdf_science/william_farr.pdf|title=Who was William Farr?|publisher=|accessdate=15 January 2018|deadurl=yes|archiveurl=https://web.archive.org/web/20090325114725/http://www.ibms.org/pdf/pdf_science/william_farr.pdf|archivedate=25 March 2009|df=}}</ref><ref>{{cite web|url=http://www.scpub.org/data//files/revinfdischron-9694.pdf|title=Wayback Machine|date=25 March 2009|publisher=|accessdate=15 January 2018|deadurl=bot: unknown|archiveurl=https://web.archive.org/web/20090325114725/http://www.scpub.org/data//files/revinfdischron-9694.pdf|archivedate=25 March 2009|df=}}</ref> was a proponent of the theory and worked to make hospitals sanitary and fresh-smelling. It was stated in 'Notes on Nursing for the Labouring Classes' (1860) that Nightingale would "keep the air [the patient] breathes as pure as the external air.<ref>{{cite web|url=http://web.ebscohost.com/ehost/detail?sid=db0fdd56-04d9-4d01-96c5-cd755308c012@sessionmgr15&vid=1&hid=21&bdata=JnNpdGU9ZWhvc3QtbGl2ZSZzY29wZT1zaXRl#AN0026608553-13|title=Bookmarkable URL intermediate page|website=web.ebscohost.com|accessdate=15 January 2018}}</ref>
 
Fear of miasma registered in many early nineteenth century warnings concerning what was termed “unhealthy fog”. The presence of fog strongly indicated the presence of miasma. The miasmas behaved like smoke or mist, blown with air currents, wafted by winds. It did not simply travel on air, it changed the air through which it propagated. The atmosphere was infected by miasma, as diseased people were.<ref>Valenčius, Conevery B. The Health of the Country: How American Settlers Understood Themselves and Their Land. New York: Basic Books, 2002. pp. 115–17. Print.</ref> Many believed miasma was magical, and was able to change the properties of the air and atmosphere completely.