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Epidemiology Exam I - Part 1 Flashcards | StudBud
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Epidemiology Exam I - Part 1
Epidemiology Exam I - Part 1
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Answers
1
Which of the following is a purpose of the study of epidemiology?
Evaluate Preventative & Therapeutic Factors
Determine the Magnitude of Disease of Populations
Study the Natural History/Prognosis Related to Disease
All the Above
Collect Quantitative Data as the Foundation for Public Policy
Identify Causes/Predictors of Health Outcomes
2
What type of immunity involves colostrum and immunoglobulins?
Innate
Passively Acquired
Actively Acquired
All the Above
3
What is described where the mean, median and mode are equal with the skewness/kurtosis at zero?
Bar Graph
Tests for Normality
Descriptive Statistics
Histogram
4
Which type of transmission would involve immediate proximity and often occurs by respiratory route or venereal disease?
Indirect
Direct
5
What is the ability to transit infection either directly or indirectly?
Infectious
Infectivity
Carrier State
Contagious
6
What is an inanimate object that is capable of transmitting an infectious agent?
Vector
Fomite
Source
Vehicle
7
What is the probability that you will roll a snake eyes on a pair of dice?
1:36
1:6
1:35
1:12
8
What is the interval from effective exposure to a non-infectious agent and the onset of related disease?
Sub-Clinical Period
Incubation Period
Induction Period
Pre-Patent Period
9
A measurement is an assignment of numbers or names to objects/events according to a set of rules.
True
False
10
What is the ability of an agent to enter, survive, and multiply in the host?
Infectious
Contagious
Carrier State
Infectivity
11
Which of the following denotes a measurable numerical outcome?
Numerical
Quantitative
Nominal
Ordinal
12
What is the ability of an agent to produce clinical disease?
Exposure
Infection
Pathogenicity
Virulence
13
Odds can be described as ratios AND proportions.
True
False
14
The route of entry of the digestive tract is frequently via fecal-oral transmission.
True
False
15
Which of the following types of data is an ordered list where spacing between levels is not definable?
Nominal
Ordinal
Interval
Ratio
16
Risk is a deterministic model of causation and corresponds to ___________.
Populations
Individuals
17
Which of the following was NOT mentioned as a route of entry when dealing with the skin?
Insects
Injections
Bites
Topicals
18
Which of the following is NOT an epidemiological data classification?
Nominal/Ordinal/Interval/Ratio
Objective/Subjective
Categorical (Discrete)/Continuous
Qualitative/Quantitative
19
What type of cases occur regularly with a predictable pattern?
Endemic
Sporadic
Epidemic
Pandemic
20
What term is used to describe the potential development of disease in individuals?
Risk
Uncertainty
Chance
Probability
21
What is the ability of an agent to produce severe disease?
Exposure
Pathogenicity
Infection
Virulence
22
What describes data with names, but no true order (e.g. nationality)?
Nominal
Quantitative
Ordinal
Interval
23
Which of the following can also be defined as the sampling distribution of the statistic?
Probability Distribution
Statistic
Parameter
Probability
24
What is defined as the persistence of an infectious agent within the host without clinical signs or symptoms?
Carrier State
Infectivity
Latent Infection
Contagion
25
Which of the following is considered an indirect method for transfer of a disease to a new host?
Environment
Vector
All the Above
Fomite
26
Infectiousness relates to the ability of an animal to transmit an infection to a new susceptible host.
False
True
27
What potential problems could arise when collecting data for epidemiological purposes?
Poor Recording Precision
Missing Data
Recording Errors
All the Above
28
Which of the following denotes a description or subjective impression?
Quantitative
Qualitative
Continous
Nominal
29
The epidemiology web of causation includes ___________.
Management
Genetics
Disease Agent
Host Immunity
Behavior
Environment
30
What type of data has equal spacing between levels and can be quantified without a true zero point?
Nominal
Interval
Ratio
Qualitative
31
What do you classify an animal that is infectious, but does not have clinical signs of the disease?
Variant
Carrier
Vector
Fomite
32
What would be involved in the first step in determining factors associated with a disease occurrence?
All the Above
Time
Animal Involved
Place
33
Which of the following shows data with a single mode and appears relatively bell shaped?
Histogram
Pie Chart
Bar Graph
Line Graph
34
Which of the following is NOT a part of the epidemiology triad?
Management
Host
Agent
Environment
35
What is an animate object (mechanical or biological) that is capable of spreading infection?
Vector
Source
Fomite
Vehicle
36
Which of the following is a potential route of entry for a disease/pathogen?
Respiratory Tract
Urogenital
Skin
Digestive Tract
Mucous Membranes
Placenta
37
What describes gaps between possible values such as with birth order?
Interval
Ordinal
Discrete
Continuous
38
What is a sudden increase in the number of disease cases above what is normal expected in a population of an area?
Epidemic
Outbreak
Pandemic
Cluster
39
Which of the following equations most accurately illustrates a ratio?
a / (a + b)
a / (time at risk of becoming a)
b / a ( x2 )
a / b
40
What is among the first things a veterinarian should consider when investigating a disease for epidemiological purposes?
Body Condition
Diet
Signalment
Management
41
What cases occur clustered in time and space, above what would be expected?
Endemic
Epidemic
Pandemic
Sporadic
42
What is a sudden rise in incidence of disease that is limited in geographical distributions?
Outbreak
Pandemic
Cluster
Epidemic
43
What type of data includes the highest level of measurement based on a true zero point?
Interval
Ordinal
Ratio
True Order
44
What is the persistence of an infectious agent within the host without active replication/shedding?
Contagious
Carrier State
Latent Infection
Infectivity
45
What is expressed as the proportion of resistant animals in a herd?
Herd Immunity
Herd Resistance
Herd Influence
Herd Response
46
What is an inanimate substance that serves to pass an infectious agent to susceptible individuals?
Fomite
Source
Vectors
Vehicle
47
What is the odds of rolling snake eyes on a pair of dice?
1:6
1:35
1:12
1:36
48
Which of the following is a factor that can drive disease transmission?
All the Above
Probability of Adequate Contact
Level of Immunity in the Population
Presence/Number of Infectious Individuals
49
Which of the following equations most accurately illustrates a proportion?
a / (time at risk of becoming a)
b / a ( *x2 )
a / (a + b)
a / b
50
A dichotomous data point only involves two levels and can be typically be answered with a yes or no question?
True
False
51
A cluster is an aggregation of cases in place & time that are believed to be greater than expected.
False
True
52
Which type of common source epidemic would occur within a short period of time?
All the Above
Point Source
Line Source
Proper Source
53
What is the interval from exposure to the infectious agent & the detection of the agent in tissues/secretions of host?
Sub-Clinical Period
Incubation Period
Pre-Patent Period
Induction Period
54
What is a random variable where its value will change from sample to sample?
Probability
Statistic
Parameter
Chance
55
A pandemic is an epidemic affecting many countries in the world?
True
False
56
What is the actual object from which an infection was acquired?
Vehicle
Vector
Fomite
Source
57
What is the biological niche that supports the infectious agent before "escaping" into the animal/human of interest?
Fomite
Source
Vehicle
Reservoir
58
Which type of cases occur irregularly without a discernable pattern?
Pandemic
Endemic
Sporadic
Epidemic
59
What is a relative resistance of a herd of animals to invasion & spread of an infectious organism?
Herd Immunity
Herd Resistance
Herd Influence
Herd Response
60
What is the interval from effective exposure to an infectious agent & the onset of related disease?
Incubation Period
Subclinical Period
Pre-Patent Period
Induction Period
61
What type of immunity can occur due to a natural infection, vaccination, or purposeful infection?
Actively Acquired
Passively Acquired
Innate
None of the Above
62
Which type of immunity are animals born with?
None of the Above
Passively Acquired
Innate
Actively Acquired
63
Which of the following is important when studying a diseae?
Causes of the Disease
Outbreak Investigations
Population or Individual Patients Involved
Disease Etiology
64
Which of the following equations most accurately illustrates a rate?
a / b
a / (time at risk of becoming a)
a / (a + b)
b / a ( x2 )
65
Adequate contact WILL cause disease transmission in completely susceptible hosts.
True
False
66
What is the ability to transmit an infection through direct contact?
Contagious
Carrier State
Latent Infection
Infectious
67
What factors were used in the Framingham Heart Study?
Diabetes Status
Hypertension
Physical Activity
All the Above
Body Weight
Age
68
What method(s) can be used to evaluate the normality assumption?
All the Above
Formal Test For Normality
Plotting Histograms
Descriptive Statistics
69
What is a specialized database specializing in spatial data storage and presentation?
GPS
Geographic Management System
Geographic Information System
Geographic Supply
70
What is the true population value?
Parameter
Probability
Chance
Statistic
71
What describes data where no gaps occur between possible values?
Continuous
Nominal
Ordinal
Contiguous