Exam 1: Overview of Epidemiology

Question 1

What are the aims of epidemiology?

Answer 1

To DESCRIBE the health status of populations, through enumeration of occurrence of disease, obtaining relative frequency in subgroups, and discovering important trends
To EXPLAIN etiology of disease by determining factors that cause disease and discover transmission modes
To PREDICT the number of disease occurrences and the distribution of health
To CONTROL disease and prolong productive life through prevention of disease, early identification of disease, reduction of existing cases, and assessment of intervention

Question 2

What is an observational study?

Answer 2

We are not administering a fixed treatment and we don’t control the exposure factor. We are not randomizing the animals. We observe and measure exposure and observe and record outcome
This is the principle type of epidemiologic study

Question 3

What are the main types of observational studies?

Answer 3

Cohort, case-control, and prevalence studies

Question 4

What is epidemiology?

Answer 4

The study of disease in people populations with intention to institute control

Question 5

What is epizootology?

Answer 5

The study of disease in animal populations with intention to institute control