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Elementary Epidemiology: Disease Investigation Using Basic Math Skills

Elementary Epidemiology: Disease Investigation Using Basic Math Skills. Epidemiology… What is it?. Epidemiology is the study of the occurrence and distribution of diseases and their factors in the population To prevent and control diseases on a large scale.

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Elementary Epidemiology: Disease Investigation Using Basic Math Skills

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  1. Elementary Epidemiology:Disease Investigation Using Basic Math Skills

  2. Epidemiology… What is it? • Epidemiology is the study of the occurrence and distribution of diseases and their factors in the population • To prevent and control diseases on a large scale • Epidemiologists are the scientists who use math and science discover the cause of a disease in a population • Called “detectives of the medical field”

  3. Types of Epidemiology • Infectious Disease Epidemiology • Chronic Disease Epidemiology • Environmental Epidemiology • Cancer Epidemiology • Genetic Epidemiology • Occupational Epidemiology

  4. Required Skills

  5. Terms • Population- the full group of people you are studying • Sample- a small portion of the group you are studying • Case- a person who has the disease being studied. • Control- a person who does not have the disease being studied.

  6. Term Practice

  7. Scenario • At Bonny Kate Elementary School on Monday, students were served lunch as usual. • By Tuesday afternoon, 20 students were sick with salmonella, which is commonly known as food poisoning. • The school lunches are suspected. You are responsible for the leading the epidemiological investigation.

  8. What you do need to figure it out? • Number of Cases • Number of Controls • Who ate the school lunches on Monday • What foods were served on Monday • When did people become sick • What were their symptoms

  9. What makes a case… • Incubation Period • Sickness begins between 24 to 72 hours after • Symptoms • Fever • Diarrhea • Stomach Pain • Vomiting

  10. How do we show this? • Incident Rate • Number of cases / the total population • Attack Rate • Number of people who ate the food and became ill / the number of people who ate the food

  11. What is next? • Your groups will receive data from the sample of students at Bonny Kate. • You and your team will use the data to investigate the outbreak. • By the end of the activity, you all will need to be able to identify the food that caused the salmonella and explain why you think it is that food.

  12. How to solve this. . . • Calculate the total incident rate for the sample • Predict which food could be cause • Calculate the attack rate for each food • Graphyour results

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