Presentation 1(History of PH)
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Transcript of Presentation 1(History of PH)
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INTRODUCTION TO PUBLIC HEALTH COURSE CODE PBH 101
1 Dr Farah Noor
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What is Public Health?
In the next 3 minutes:
Find a partner.
Create a short definition.
Share with class
2 Dr Farah Noor
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Introductions
3 Dr Farah Noor
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Pretest
4 Dr Farah Noor
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A BRIEF HISTORY OF PUBLIC HEALTH
5 Dr Farah Noor
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What is Public Health?
“To promote health and quality of life by preventing and controlling disease, injury, and disability.”
—CDC Mission Statement
6 Dr Farah Noor
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Objectives
Define public health.
Describe conditions that existed before the advent of modern public health.
Describe three public health interventions since 1900 that have increased life expectancy in the U.S and world itself.
7 Dr Farah Noor
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Requirements for Survival
Air
Water
Food
Shelter
Care
8 Dr Farah Noor
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History of public health
Around ten thousand years ago, when people began to move from a nomadic to a more settled lifestyle, the risks to health changed too.
Increased contact with people and animals - and their waste products - generated new problems.
9 Dr Farah Noor
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Timeline
Ancient Greece
Roman Empire
Middle Ages
Birth of Modern Medicine
“Great Sanitary Awakening”
Modern Public Health
10 Dr Farah Noor
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Timeline
Ancient Greece
Roman Empire
Middle Ages
Birth of Modern Medicine
“Great Sanitary Awakening”
Modern Public Health
11 Dr Farah Noor
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Ancient Greeks (500-323 BC)
Personal hygiene
Physical fitness
Olympics
Naturalistic concept
Disease caused by imbalance between man and his environment
Hippocrates
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Hippocrates (b. 460 BC)
Father of Western medicine
Causal relationships
Disease and climate, water, lifestyle, and nutrition
Coined the term epidemic
Epis (“on” or “akin to”)
Demos (“people”)
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Roman Empire (23 BC – 476 AD)
Adopted Greek health values
Great engineers Sewage systems
Aqueducts
Administration Public baths
Water supply
Markets
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Roman Aqueducts: Southern France to carry fresh
water
Le Pont du Gard 15 Dr Farah Noor
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Middle Ages (476-1450 AD)
Shift away from Greek and Roman values
Physical body less important than spiritual self
Decline of hygiene and sanitation
Beginnings of PH tools
Quarantine of ships
Isolation of diseased individuals
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The Plague (epidemic disease in western Eourpe
Death of 25% to 50% of population
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Renaissance (1400-1600 AD) Global Exploration
Disease, spread by traders and explorers
Killed 90% of indigenous people in New World
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Age of Reason and Enlightenment (1650-1800 AD)
Birth of Modern Medicine
William Harvey 1628 theories of circulation
Edward Jenner 1796 cowpox experiment
Coined the term vaccine (vacca, Latin for “cow”)
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Industrialization Urbanization (1800s)
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Great Sanitary Awakening (1800s-1900s)
Growth in scientific knowledge
Humanitarian ideals
Connection between poverty and disease
Water supply and sewage removal
Monitor community health status
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Dr. John Snow (1813-1858)
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Broad Street Pump:
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Father of modern epidemiology for his work identifying the source of a cholera
outbreak in 1854. At the time, it was assumed that cholera was
airborne. However, Snow did not accept this (bad air) theory
In August 1854, a cholera outbreak occurred in Soho. After careful investigation, including plotting cases of cholera on a map of the area, Snow was able to identify a water pump in Broad (now Broadwick) Street as the source of the disease.
He had the handle of the pump removed, and cases of cholera immediately began to diminish.
24 Dr Farah Noor
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Map of Diphtheria Deaths New York City May 1, 1874 to December 31, 1875
Made under the direction of
W. De F. Day, M.D., Sanitary Superintendent, NYC Health Dept.
www.ihm.nlm.nih.gov
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Growth in Scientific Knowledge
Louis Pasteur 1862 germs caused many diseases
1888 first public health lab
Robert Koch 1883 identified the vibrio that causes
cholera, 20 years after Snow’s discovery
Discovered the tuberculosis bacterium
1843-1910
1822-1895
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Sanitary Reform
England 1842 Edwin Chadwick’s “Survey
into the Sanitary Condition of the Labouring Classes in Great Britain”
Landmark research
Graphic descriptions of filth and disease spread in urban areas
1848 General Board of Health
1800-1890
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Redefining the Unacceptable
“The landmarks of political, economic and social history are the moments when some condition passed from the category of the given into the category of the intolerable…The history of public health might well be written as a record of successive redefinings of the unacceptable.”
- Geoffrey Vickers, Secretary, Medical Research Council, Great Britain, 1958
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Redefining the Unacceptable
In the next 5 minutes:
Brainstorm and record a list of “things” affecting the public’s health that have passed from tolerable (accepted) to intolerable (unaccepted).
Include items that you wish would become unacceptable.
29 Dr Farah Noor
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Sanitation Revolution
Clean water; water treatment
Food inspection
Soaps, disinfectants, and pharmaceuticals
Personal hygiene (bathing)
Public works departments; garbage collection, landfills, and street cleaning
Public health departments and regulation
30 Dr Farah Noor
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Twentieth Century
Source: www.infoplease.com
89
101112131415161718
1900
1925
1934
1939
1944
1949
1954
1959
1965
1970
1975
1980
1985
1990
1995
2000
Year
Death
s p
er
1,0
00
U.S. Mortality Rate: 1900-2001
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Ten Great Achievements in Public Health, 1900-1999
1. Vaccination.
2. Motor-vehicle safety.
3. Safer workplaces.
4. Control of infectious diseases.
5. Decline in deaths from coronary heart disease and stroke.
6. Safer and healthier foods.
7. Healthier mothers and babies.
8. Family planning.
9. Fluoridation of drinking water.
10. Recognition of tobacco use as a health hazard.
CDC, Morbidity and Mortality
Weekly Report, December 24, 1999
/ 48(50); 1141.
Available at:
http://www.cdc.gov/mmwr/preview/
mmwrhtml/mm4850bx.htm
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World Population Growth
Year
Po
pu
lati
on
(in
milli
on
s)
1850
2010
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Multiple Determinants of Health
Individual
Biology
Behavior
Physical
Environment
Social
Environment
Access to Quality Health Care
Policies and Interventions
Source: U.S. Department of Health and Human Services, Health People 2010 34 Dr Farah Noor
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Thank you
35 Dr Farah Noor
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36 Dr Farah Noor