John snow presentation

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  • John snow presentation

    1. 1. JOHN SNOWJohn Lee, Jade Lewis, Cheryl Man
    2. 2. WHO IS JOHN SNOWScientisttraced the source of a cholera outbreak in Soho, England, in 1854.Realized victims use a particular communal water pump, removedthe pump handle, outbreak subsided.Because of his insight, known as the father of the science ofepidemiology.
    3. 3. WHAT HE DIDHe found out what caused CholeraBest known for his work on cholera and anesthesiology.Considered one of the founders of modern  epidemiology.1840’s he pioneered the development of the equipment used toadminister patients safely.His greatest contribution was demonstrating that feces contaminatedwater.That was the source of Cholera Infection.
    4. 4. CHOLERAAn infection of the small intestine.Causes a large amount of watery diarrhea.How is it caused ? The bacterium Vibrio Cholerae releases a toxin that causes increased release of water from cells in the intestines Cholera occurs in places with Poor sanitation Crowding War Kills both children and adults within hours
    5. 5. HOW CHOLERA IS TRANSMITTEDingesting food or water thats contaminated.Leads toDeath,Dehydration,and Kidney Failure75%people that are infected dont develop any symptomsPathogens stay for 7-14 daysthrough diarrhea
    6. 6. SYMPTOMSAbdominal crampsDry skinGlassy or Sunken eyesLow urine outputDehydrationvomitingand watery diarrhea that starts suddenly and has a fishy oder
    7. 7. TREATMENTtry to remove fluid and electrolytes through diarrheaFluids through Mouth or IVantibiotics relive some of the pain
    8. 8. ECONOMIC EFFECTSCholera causes panic disrupting social and economicstructureExample :Peru 1991US$770 millionFood trade and Tourism
    9. 9. EFFECTS ON THE ENVIRONMENTPopulations around the world have been affected.First recorded epidemic was in India 1563
    10. 10. PANDEMIC1st one recorded,1817started in IndonesiaSpread around the world ,1991400,000 cases and 4000 deaths ,AmericasNow in many parts of the worldthe deaths were officially notified to the WHO.(WorldHealth Organization)
    11. 11. BIBLIOGRAPHY http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001348/ - Board, A.D.A.M. Editorial. "John Snow." Cholera. U.S. National Library of Medicine, 18 Nov. 0000. Web. 12 Sept. 2012. <http://www.ncbi.nlm.nih.gov/pubmedhealth/ PMH0001348/>.- "Encyclopedia - Britannica Online Encyclopedia." Encyclopedia - Britannica Online   Encyclopedia. Web. 12 Sept. 2012.http://pmep.cce.cornell.edu/profiles/extoxnet/TIB/epidemiology.htmlhttp://www.ph.ucla.edu/epi/snow/snowcricketarticle.html

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