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Question 1

Public health approach (problem—->response) ?

Answer 1

1)surveillance
2) risk factor identification
3)intervention evaluation
4)implementation

Question 2

What is epidemiology?

Answer 2

*basic science of public health
* study of the distribution and determination of health-related states among specified populations and the application of that study to the control of health problems
*provide the scientific basis to prevent disease
*determine relative importance to establish priorities for research and action

Question 3

What do epidemiologist

Answer 3

Study sick people and healthy people ,study exposed people and non exposed people to determine the crucial effect of the exposure

Question 4

Purposes of epidemiology

Answer 4

*factor that affect health
*important causes of illness ,disability ,death
*identify the greatest risk from specific causes
*aid to development , evaluate the effectiveness of health services
*developing disease control and prevention measures
*determine,describe ,report on the natural course of disease
*study of etiology of disease,condition,disorders
*primary agent responsible or ascertain causative factor
*characteristic of agent
*determine the mode of transmission
*determine geographic pattern

Question 5

Solving health problems

Answer 5

1)data collection :determine time ,place ,person
2)assessment
3)hypotheses testing ; why and how
4) take action

Question 6

Endemic

Answer 6

Disease among population at all time

Question 7

Epidemic

Answer 7

Disease among population that is excess of what expected in given time and place a specific geographical location

Question 8

Pandemic

Answer 8

Disease that spread across regions

Question 9

Cluster

Answer 9

Group of cases in specific time and place that might be more than expected

Question 10

Descriptive epidemiology

Answer 10

Examining the distribution of disease , observe the basic features of its distribution

Question 11

Analaytic epidemiology

Answer 11

Investigation hypothesis ,by studying how exposure related to disease,know where to look know what to control ,develop viable hypothesis

Question 12

Epidemic occur when triad almost not balance

Answer 12

New agent
Change in existing agent
Change number of susceptible
Environmental changes that affect transmission of agent

Question 13

Natural history of a disease

Answer 13

Progression of a disease process in an individual over time , absence of treatment