#1
Which of the following is a vector-borne disease?
Influenza
Malaria
Tuberculosis
HIV/AIDS
#2
Which of the following is an example of a zoonotic disease?
Common cold
Cholera
Rabies
Typhoid
#3
Which of the following is an example of a primary prevention strategy in public health?
Vaccination against a specific disease
Early detection and treatment of a condition
Rehabilitation programs for individuals with chronic diseases
Screening for risk factors in the general population
#4
What is the primary goal of descriptive epidemiology?
To investigate causal relationships between exposures and outcomes
To calculate measures of association
To characterize the distribution of disease in a population
To assess the effectiveness of interventions
#5
What does the term 'morbidity' refer to in epidemiology?
The proportion of deaths in a population
The presence of illness or disease in a population
The number of new cases in a population
The duration of illness in infected individuals
#6
What is the basic reproduction number (R0) in epidemiology?
The number of new cases in a population at a specific time
The average number of secondary infections produced by one infected individual
The total number of cases in a population
The duration of illness in infected individuals
#7
Which of the following is a measure of association used in cohort studies?
Odds ratio
Relative risk
Sensitivity
Specificity
#8
What is the purpose of the 'epidemiologic triad' in disease causation?
To identify risk factors in a population
To understand the interplay between host, agent, and environment in disease occurrence
To calculate incidence rates
To measure the prevalence of diseases
#9
Which statistical test is commonly used to compare means between two groups in epidemiological studies?
Chi-square test
T-test
ANOVA
Mann-Whitney U test
#10
What is the purpose of randomization in experimental studies?
To ensure that all participants are of the same age
To eliminate confounding variables and ensure unbiased comparison between groups
To guarantee that the intervention is always effective
To control for selection bias
#11
What does the term 'incidence rate' represent in epidemiology?
The proportion of the population that has a particular condition at a specific point in time
The total number of cases in a population
The number of new cases in a population at risk during a specific time period
The probability of an event occurring
#12
In epidemiology, what does the term 'case-fatality rate' measure?
The proportion of the population that has a particular condition at a specific point in time
The probability of an event occurring
The proportion of cases that result in death
The number of new cases in a population at risk during a specific time period
#13
What is the purpose of a case-control study in epidemiology?
To estimate the prevalence of a disease in a population
To investigate the association between exposures and outcomes
To assess the effectiveness of an intervention
To calculate incidence rates
#14
What is the concept of 'herd immunity' in the context of infectious diseases?
The resistance of an individual to a specific pathogen
The proportion of immune individuals in a population, reducing the spread of disease
The occurrence of a disease in a defined geographic area
The likelihood of an event occurring
#15
In epidemiology, what does the term 'sensitivity' measure?
The proportion of true negatives among all negatives
The proportion of true positives among all positives
The ability to detect a true effect
The specificity of a diagnostic test