Knowledge quiz: Topics 1-3

Answer the following multiple choice questions to test your understanding of the materials from Topics 1 to 3: Intro to Epidemiology, Measures of Disease Frequency and Association and Overview of Epidemiological Study Designs.

Questions

Q1: All of the following illustrate the purpose of epidemiology in public health, except:

identifying populations who are at risk for certain diseases assessing the effectiveness of interventions determining the importance of causes of illness providing treatment for patients in clinical settings

Q2: Epidemiologists use a model for studying infectious disease and its spread that involves the microbe that causes the disease, the organism that harbors the disease, and the external factors that cause or allow disease transmission. This is also known as:

host, agent, and environment organism, transmission, and environment transmission, host, and environment host, vector, and transmission

Q3: Match each term to the correct example:

A: Endemic

B: Pandemic

C: Epidemic

3.1. Malaria is present in Africa at all times becuase of the presence of mosquitos. Malaria is in Africa.

3.2. The Ebola virus in parts of Africa is in excess of what is expected for this region. This virus is a/an

3.3. Covid-19 is a very recent example of a

Q4: Choose the correct term to complete this sentence:

A: Distribution

B: Cluster

C: Determinant

An outbreak of measles occurred among children at Disney Land in December 2014. This group of cases in this specific time and place can be described as a

Q5: Match each term with its correct definition:

A: Incidence rate

B: Prevalence

C: Cumulative Incidence

The proportion of individuals in a population who have a disease at a specific time.
The number of new cases of a disease occurring in a specified period.
The proportion of a population with a new event during a given time period.

Q6: Calculate the incidence rate: A study in a village finds 100 new cases of malaria over a year in a population of 10,000. What is the incidence rate per 1,000 people?

1 per 1,000 100 per 1,000 10 per 1,000 0.1 per 1,000

Q7: Match the terms to the correct example below:

A study of heart disease comparing a group who eats healthy foods and exercises regularly with one who does not in an effort to test association:
A study to describe the eating habits of adolescents aged 13–18 years in Community X::

Q8: Which of the following is an example of a cohort study?

Describing the characteristics of a single case or a series of cases Conducting a survey to assess the prevalence of a disease Observing a group of individuals over time to see who develops a disease Comparing the exposure histories of people with and without a disease

Q9: Which of the following is a measure of association in epidemiology?

Point prevalence Relative risk Incidence Prevalence

Q10: In a case-control study, the measure of association commonly used is:

Risk ratio Prevalence rate Odds ratio Incidence rate

Q11. Which statement is TRUE about the use of prevalence data in public health?

It measures the rate of disease over a specific period It helps assess the burden of disease in a population It is not useful for planning health services It is used to identify new cases of disease

Q12. In the context of malaria control, which of the following is an example of a preventive measure?

Recording malaria cases in a health information system Distribution of insecticide-treated bed nets Conducting a prevalence survey Treatment of infected individuals with antimalarial drugs