John Snow's approach to explaining cholera and how it spread consisted primarily of morbid poison entering the alimentary canal through means of contaminated water consumption. Snow believed this to be the basis of how cholera was contracted by individuals and believed improper sewage filtration was to blame as well as a means of spreading the disease from person to person. However, previous explanations of how cholera was contracted consisted of the theory of airborne infection. This theory proposed that cholera was contracted by inhaling air at low levels of altitude by such people as workers in slaughterhouses and bone merchants. This theory also proposed that the foul-smelling odors associated with these occupations were closely …show more content…
Although Snow was never able to convince his peers early on of his theory that ingestion of contaminated water was the cause of cholera, he did recommend actions that could be taken in the presence of cholera and for preventing the disease from spreading. These actions Snow provides in his pamphlet, "On the Mode of Communication of Cholera" consists of twelve measures society can perform in the presence of cholera and in preventing cholera and other diseases that are communicable in the same manner from spreading. The basis of the measures Snow suggests are strict cleanliness when dealing with sick individuals, proper preparations and filtration of water, and isolation between individuals that are sick and those who are not. Snow's measure of strict cleanliness consisted of people exhibiting proper hygiene skills when dealing with disease stricken individuals by means of correct hand washing techniques, proper disposal of infected garments, and appropriate means of food handling. Snow was also an advocate of correct means of water filtration, primarily based on his theory of how cholera was transmitted. Actions that Snow suggested concerning water preparations and filtration included such things as boiling water before consumption, better source locations established by water companies, and a more efficient sewage and filtration system
The work of these two men changed the contemporary views on how disease was spread. By solving the cholera mystery, they helped contribute to making the world safe for bigger cities. Over the next few years a lot of changes were made. Both the medical and public health establishments latched onto Snow’s waterborne theory and through one of the greatest feats in engineering history, London started the process of making an entirely new sewer system. This, along with other precautions such as boiling water that was suspected to be contaminated, brought an end to city-wide choleric outbreaks. Besides the improvements in sewage, the improvements of sanitary conditions all around greatly diminished the spread of disease and held a major part in making the modern city possible. Overall, it turned out that something that was once horrendous and deadly for a massive amount of people, eventually turned out to be helpful for the future of mankind. (Johnson)
The book “The Great Influenza: The Story of the Deadliest Pandemic in History, written by John M. Barry, covers the progression of the Spanish influenza, especially in the United States. Barry focuses not only on the influenza itself, though, but also on the social influences that allowed the virus to flourish. The book covers how medical practices in the United States had risen up just in time to combat the virus, but, due to societal issues and the war, the doctors struggled in areas where they should have been successful.
A reviewer in the London Medical Gazette suggested that Snow find people living side by side with lifestyles similar in all aspects except of their water source. He made this suggestion because this would ensure that the neighbors breathe the same air and resemble each other more in variables other than the water source. This would guarantee that the water is the source, and not other factors that is causing the cholera.
In the book The Ghost Map, cholera was going into a massive outbreak in London during 1854. The story begins as one of the characters, baby Lewis, Contracts cholera, and when the mother washes diapers and cleans for the baby, she throws the water into the street. This leads to the outbreak. While the Board of Health believed the smell of the city was the cause of the outbreak, there was another citizen who believed otherwise. Henry Whitehead was a doctor who began to specialize in anesthesiology. Meanwhile, John Snow was researching his own theories, and he worked his way through the city to locate where high volumes of people were dying. While he was doing his research he began making a map, and he graphed where people were dying. Each house
In the early Jamestown settlement disease was the primary causes of settler deaths. “[D]isease in the early years to Jamestown’s position at the salt/freshwater transition, where filth introduced into the river tended to fester rather than flush away.” -Dennis Blanton, “Jamestown’s Environment” (Source B) The settlers of Jamestown had to put their waste somewhere, so they decided to dump it in the nearby Jamestown River. Instead of flushing away quickly the dirty water filled with human waste just sat there for long periods of time until it eventually did flush away. Because of the cleanliness levels of this dirty water many who chose to drink it got sick and died. “Disease returns, 100 at Jamestown sickened and half the number died.” -Adapted from J. Frederick Fausz, “An Abundance of Bloodshed on Both Sides: England’s First Indian War 1609-1614,” The Virginia Magazine of History and Biography (Source G) When people got sick it happened in vast quantities, so it could spread even quicker and infect more people. The death rate of someone who was sick was also very high, many who were sick ended up dying.
In the very first chapter, Steven Johnson begins to set the scene of how the overpopulation of London coupled with extreme levels of poverty created the perfect opportunity for Cholera to spread in the rapid manner that it did. On page one it states; “These were the London underclasses, at least a hundred thousand strong. So immense were their numbers that had the scavengers broken off and formed their own city, it would have been the fifth-largest in all of England.” Johnson mentions that the city of London had become a city of Scavengers, consisting of; bone-pickers, pure-finders, dredgermen, sewer-hunters and night-soil men. However, the harshest reflection of the Cholera epidemic of 1854 is conveyed by John Snow himself. On page 59 it states; “The young Snow observed
He linked the common illness cholera to people whom drank from the wells. He observed those getting ill and which areas and pumps they drank from and recorded it on a map, he was then able to establish all those getting ill were in fact drinking from the same pump, and consequently in 1854 John Snow removed the handle of the Broad Street pump and ceased the epidemic of Cholera in Soho, London
People had little knowledge of germs and bacteria, and that there are trillions of these microscopic invaders everywhere you go. Therefore many people took little effort in keeping good hygiene and awareness of transmissible distances between people. The close contact of people made the spread of the virus effortless. People soon began
John Snow’s findings in place, the Great Stink was the last factor that finally motivated the government to deal with their contaminated drinking water. Years later, another outbreak erupted. Farr, Radcliffe, and Whitehead referred to the now deceased physician’s theory of cholera. Farr was convinced that cholera originated in contaminated water, and he found out that the drainage system in the devastated part of the city was not in use yet. The outbreak of cholera on Broad Street and the iconic map thereafter helped to improve sanitation; the reputation of this famous, clean water, and the isolated cases that specifically fetched water from this pump, were a few factors that aided Snow in his conclusion that cholera came from the Broad Street well. Dr. Snow provided the theory, and Whitehead backed it with evidence. When the scientific mainstream came to accept the cholera theory of water, hygiene was significantly bettered in cities. Sanitary water supplies and waste-removal systems became the central infrastructure project of every industrialized city on the planet. These sewer lines and freshwater pipes made the modern city safe for new inventions and developments.
The book The Great Influenza by John Barry takes us back to arguably one of the greatest medical disasters in human history, the book focuses on the influenza pandemic which took place in the year 1918. The world was at war in the First World War and with everyone preoccupied with happenings in Europe and winning the war, the influenza pandemic struck when the human race was least ready and most distracted by happenings all over the world. In total the influenza pandemic killed over a hundred million people on a global scale, clearly more than most of the deadliest diseases in modern times. John Barry leaves little to imagination in his book as he gives a vivid description of the influenza pandemic of 1918 and exactly how this pandemic affected the human race. The book clearly outlines the human activities that more or less handed the human race to the influenza on a silver platter. “There was a war on, a war we had to win” (Barry, p.337). An element of focus in the book is the political happenings back at the time not only in the United States of America but also all over the world and how politicians playing politics set the way for perhaps the greatest pandemic in human history to massacre millions of people. The book also takes an evaluator look at the available medical installations and technological proficiencies and how the influenza pandemic has affected medicine all over the world.
The hygiene movement helped in the avoidance of communicable diseases, diseases for example cholera, tuberculosis and water illnesses in large part by modifying the people surroundings. In the 1850s, John Snow assisted in recognized the importance in data collection and documentation. His actions terminated an outbreak of cholera in a district of London. Using the same methodology Ignaz Semmelweis, applied it to restraint fever of childbirth a major source of maternal mortality. The reason that this was happening was that after physicians worked on the death bodies, usually they did not wash their and delivered babies and contaminating both, the mother and the baby.
Determined journalists, travelers, and people of other professions believe in exploring the natural world, conducting research, and performing experimental errors. Scientists, especially, will often embrace their passions with certainty that they will discover something worthwhile, ignoring the challenges they may come across. In “The Great Influenza” by John M. Barry, he describes these scientists with the utmost respect. Barry characterizes scientific research as a devoted activity where it is crucial to embrace uncertainty in order to yield solutions; this outlook is seen through his subtle figurative language, specifically, allusions along with the direct characterization of the qualities that successful scientists must hold, and comparisons.
This sort of environment was the perfect place for the Spanish influenza to begin its deadly streak. On March 11, the first cases of the Spanish flu showed up. The doctors did not worry; they believed it was just the flu. However, case after case of influenza came in, and by the week’s end, 522 people were sick. In the end, 48 soldiers died of influenza, and all their deaths were listed as pneumonia because of their frightening symptoms: labored breathing, violent coughs and nosebleeds, high fever, fluid filling the lungs, etc. However, quite suddenly, the influenza disappeared from Fort Riley (Iezzoni 23-24) and followed the path forged by the soldiers rushing to World War 1. It eventually spread around the world (Billings 2).
Almost 100 countries worldwide are still affected by cholera and it’s virtually impossible to completely prevent an outbreak. If left alone, this rapidly infectious disease can cause many fatalities. However, improved methods for surveillance, diagnosis, and treatment, paired with higher standards of sanitation and personal
The disease, cholera, is an infection of the intestines, caused by the bacterium Vibrio cholerae. As stated in Microbes and Infections of the Gut, the bacterium is “a Gram-negative, comma- shaped, highly motile organism with a single terminal flagellum” (105). Cholera is characterized by the most significant symptom that presents with the disease, diarrhea, and victims can lose up to twenty liters of body fluids in a day. Cholera can be a serious disease, due to the serious dehydration that can occur, but it is only fatal if treatment is not administered as soon as possible. This research paper includes information on the causes of cholera, symptoms, ways of treatment, studies of treatments, complications that may occur, the