Homework #1: Snow On Cholera

Homework #1: Snow On Cholera - Snow on Cholera Please read...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Snow on Cholera Please read the enclosed Epidemiologic Classic called "Snow on Cholera" and prepare your responses to questions 1-10 for discussion section. We hope that you enjoy reading a part of the story of this brilliant undertaking in reasoning by a medical practitioner. At the time there were no such beings as epidemiologists and microbiologists. John Snow EPID420 Snow-1 rev. 03/31/08
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
EPID420 Snow-2 rev. 03/31/08 AN EPIDEMIOLOGIC CLASSIC SNOW ON CHOLERA Introduction Dr. John Snow (1813-1858) was a distinguished British anesthesiologist who, among other accomplishments, administered chloroform to Queen Victoria at the birth of two of her children. His lasting fame, however, is based on his brilliant work elucidating the epidemiology of cholera. The following material consists of excerpts from Snow's classic monograph "On the Mode of Communication of Cholera," Second Edition, 1854 (Snow on Cholera. Haffner, New York, 1965). The entire monograph is fascinating reading, but enough is contained in the portions presented below to give the flavor of the original and to permit the reader to see the type of evidence collected by Snow and the way in which he evaluated it. Read the selections of Snow's work that follow, bearing in mind that the infectious theory of disease was not generally accepted at the time. Disease was usually believed to be caused by morbid poisons coming from dead bodies and decaying organic matter in effluvia, and spread through the air. Historical "The existence of Asiatic Cholera cannot be distinctly traced back further than the year 1769 .... " " .... It would occupy a long time to give an account of the progress of cholera over different parts of the world, with the devastation it has caused in some places, whilst it has passed lightly over others, or left them untouched; and unless this account could be accompanied with a description of the physical condition of the places, and the habits of the people, which I am unable to give, it would be of little use. "There are certain circumstances, however, connected with the progress of cholera, which may be stated in a general way. it travels along the great tracks of human intercourse, never going faster than people travel, and generally much more slowly. In extending to a fresh island or continent, it always appears first at a sea-port. It never attacks the crews of ships going from a country free from cholera, to one where the disease is prevailing, till they have entered a port, or had intercourse with the shore. Its exact progress from town to town cannot always be traced; but it has never appeared except where there has been ample opportunity for it to be conveyed by human intercourse.
Image of page 2
EPID420 Snow-3 rev. 03/31/08 Communication of Cholera from Person to Person "I called lately to inquire respecting the death of Mrs. Gore, the wife of a laborer, from cholera, at New Leigham Road, Streatham. I found that a son of the deceased has been living and working at Chelsea. He came home ill with a bowel complaint, of which he died in a day or two. His death took place on August 18th.
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern