#1
Which of the following is a vector-borne disease?
Malaria
ExplanationTransmitted by vectors like mosquitoes
#2
Which of the following is an example of a zoonotic disease?
Rabies
ExplanationTransmitted from animals to humans
#3
Which of the following is an example of a primary prevention strategy in public health?
Vaccination against a specific disease
ExplanationPrevents disease occurrence
#4
What is the primary goal of descriptive epidemiology?
To characterize the distribution of disease in a population
ExplanationDescribes patterns of disease occurrence
#5
What does the term 'morbidity' refer to in epidemiology?
The presence of illness or disease in a population
ExplanationExtent of disease in a population
#6
What is the basic reproduction number (R0) in epidemiology?
The average number of secondary infections produced by one infected individual
ExplanationMeasure of disease transmissibility
#7
Which of the following is a measure of association used in cohort studies?
Relative risk
ExplanationQuantifies the strength of association between exposure and outcome
#8
What is the purpose of the 'epidemiologic triad' in disease causation?
To understand the interplay between host, agent, and environment in disease occurrence
ExplanationConceptual framework for disease causation
#9
Which statistical test is commonly used to compare means between two groups in epidemiological studies?
T-test
ExplanationTests for significant difference between group means
#10
What is the purpose of randomization in experimental studies?
To eliminate confounding variables and ensure unbiased comparison between groups
ExplanationMinimizes bias in treatment assignment
#11
What does the term 'incidence rate' represent in epidemiology?
The number of new cases in a population at risk during a specific time period
ExplanationRate of occurrence of new cases
#12
In epidemiology, what does the term 'case-fatality rate' measure?
The proportion of cases that result in death
ExplanationMortality rate among confirmed cases
#13
What is the purpose of a case-control study in epidemiology?
To investigate the association between exposures and outcomes
ExplanationRetrospective study design for risk factor identification
#14
What is the concept of 'herd immunity' in the context of infectious diseases?
The proportion of immune individuals in a population, reducing the spread of disease
ExplanationIndirect protection from infectious diseases
#15
In epidemiology, what does the term 'sensitivity' measure?
The proportion of true positives among all positives
ExplanationAbility of a test to correctly identify positive cases