Do Now 1) What do doctors do on a daily basis? 2) What do you think EPIDEMIOLOGY means? Take a guess! 3 min.

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Presentation transcript:

Do Now 1) What do doctors do on a daily basis? 2) What do you think EPIDEMIOLOGY means? Take a guess! 3 min.

What is Epidemiology? WATCH: Is Epidemiology in Your Future? 5 min.

Epidemiology is… …the branch of medical science that deals with the incidence, distribution, and control of disease in a population (film definition)

Now… how would you describe epidemiology (beyond the definition)? EXAMPLES: Individual pt. vs. groups of people Global impact Detective work Social/behavioral science Predict & prevent instead of respond to disease Critical thinking, questions, knowing how to find info Combining doing good with thinking well Environmental Lab Politics Broad field 1 min.

Doctors/Health Care Practitioners vs. Epidemiologists Doctors & Other Health Care Practitioners Epidemiologists Both 7 min.

Doctors & other health care practitioners BOTHEpidemiologists Who: individual patients How: taking medical history & conducting a physical exam Collecting data Who: entire populations (small or large) How: surveillance systems or descriptive epidemiological studies Data used to make a diagnosisUsing dataData used to generate hypotheses about the relationships between exposure and disease Test diagnosis by conducting additional diagnostic studies or tests (ex: biopsy or MRI) Testing Hypothesis Test hypothesis by analytical studies such as cohort or case- control studies Prescribes medical treatment to patient Taking Action Creates a community intervention to end the health problem and prevent its recurrence 2 min.

Quick Check: Which of the following situations would an epidemiologist be least likely to investigate? 1) A 20% increase in reports of heat stroke in Chicago this summer 2) A surge of reported flu cases in Illinois 3) A recurring ear infection in a 7-year-old girl 4) Eight cases of in-school gun violence in one week in the Bronx, NYC 1 min.

John Snow & the Cholera Outbreak Review HW article answers for #1 This water pump, in Soho, London stands as a memorial to John Snow today 2 min.

Imagine… – What do you need to know about the people who got sick & did NOT get sick in Soho? – What else do you need to prove your case? (Tests, data, etc.) 3 min. You are John Snow… trying to prove that cholera is spread by contaminated water

Map the Outbreak! RED = WATER PUMPS (wells) BLUE = CHOLERA CASES (deaths) – Plot pumps and cases with your partner (6 min.) – Compare with other pair in group & analyze (2 min.) Lay them on top of one another to see a larger sample size ANSWER: 1) What does this data show you? Which pump appears to be the source of the contamination? 2) Is this conclusive proof that “bad water” caused the cholera epidemic? – Combine data from entire class & analyze (2 min.) 10 min.

Snow’s REAL Map <1 min.

Snow’s REAL Map <1 min.

Stretch Your Brain 1.Why did we just re-enact Snow’s discovery? 2.How do you think Snow created his map? 3.Although Snow was a doctor, how did his work make him ALSO an epidemiologist? 4.How might epidemiologists’ maps today look different from Snow’s map? Why? 3 min.