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HLSC 1F90 Lecture Notes - Persistent Organic Pollutant, Fetus, Disease Surveillance

Health Sciences
Course Code
Brent Faught

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CHSC 1F91 November 20, 2012
Week #11
- Epidemiology: Study of what is common among people
- 1854: case of the Broad Street pump, people who died from Cholera within a month
People were drinking from the Broad Street pump
Pioneers of Epidemiology
- Hippocrates: cold illness; hot remedy
- Bernadino Ramiazzini: father of occupational health and medicine
- Anna Wessels Williams: scientist; rabies vaccine
- Florence Nightingale: pioneer of nursing, strong advocate of hygiene. More men dying from
diseases in the hospital rather than staying on battle field
- Robert Koch: blood
- Frances Kelsey: responsible for stopping sales of Thalidomide (drug given during pregnancy, helps
them sleep) exposure of this drug to the fetus would have cause defects
Epidemiologic Triad
- Hosts: target population of who can become ill (plants, living things etc...)
- Agent: method contributing to cause of that illness
- Environment : mechanism that makes the Agent work and exposes itself
Infectious Epidemiology
- Establishing “etiology”:
1. Population characteristics
2. Assumption
3. Tests
4. Cultural considerations
5. Conclusion
Non-Infectious Epidemiology
Defining Epidemiology
- “Study of DISTRIBUTION and DETERMINANTS of health-related states in specified populations,
and the applications of this study to control of health problems”
Components of Distribution
- WHO is getting ill (more money you make, healthier you are)
- WHEN are you getting ill
- WHERE are you getting ill
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