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One Health Jeporady Flashcards | StudBud
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One Health Jeporady
One Health Jeporady
51 terms
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1
What criteria of causality is defined by dose-dependency?
Probability
Sample size
Age
strength of association
2
Define a zoonotic disease.
A disease that is hereditary
A disease that is transmitted through water
a disease that can be passed between animals and humans
A disease that only affects humans
3
In a chronic, infectious disease, what is the relationship between the disease’s incidence and prevalence?
Prevalence decreases as incidence increases
incidence of disease adds to its prevalence, which will increase over time
Incidence will eventually lead to a cure
Incidence + prevalence are unrelated
4
What is the name of the English veterinarian who wrote popular books called " All Creatures Great + Small"
Mary Poppins
Dr. James Herriot
Sir Arthur Doyle
Dr. John Watson
5
When designing and conducting an analytic study, what action is the primary method of minimizing bias?
Only including participants who volunteer for the study
Conducting interviews with participants after the study
randomization of sample selection and study group assignment
Randomization of sample selection and study group assignment
6
If an analytic study determines that the null hypothesis is rejected, what conclusion can be drawn?
The null hypothesis is proven true
The variables are completely unrelated
No need for further investigation
there was a significant association between the variables
7
What type of study looks at potential associations between exposure & outcome, takes place at a single point in time
Cross-sectional study
Case-sectional study
Prospective cohort study
Retrospective cohort study
8
In what part of the State government is the State Veterinarian located?
State Department for Public Health
State Department of Food Safety
State Department of Agriculture
County Health Commissioner
9
What disease, caused by certain foodborne strains of E. coli, can result in a deadly kidney disease in children?
Thrombotic thrombocytopenic purpura
Immune thrombocytopenic purpura
hemolytic uremic syndrome (HUS)
Acute Kidney Injury
10
"The scientific discipline describing handling, preparation and storage of food in ways that prevent foodorne illness"
Personal hygiene
Food safety
Food defense
Food allergies
11
Who is considered the “father of epidemiology”?
Dr .John Snow
Dr. Marvin Mikesell
Dr.Edward Jenner
Dr. Paul Hail
12
Why do B. cereus, S. aureus, C. perfringens, and C. botulinum produce foodborne illness with short period of incubation?
Descriptive epidemiology
The exposure provided protection from the disease
Internal validity
They produce toxins
13
What is the first step in a CDC Outbreak Investigation?
Confirm the existence of a disease event
Notify the public about the outbreak
Conduct a survey of all the affected population
Conduct data from all potential cases
14
What type of transmission is represented by a mare transmitting a disease in utero to the developing foal?
Vertical direct transmission
Fomite transmission
Direct contact transmission
Vector-borne transmisison
15
What is the term defined as the effort to protect food from acts of intentional adulteration?
Food fraud
food defense
Food inspection
Food quality
16
According to the KY State PH Veterinarian, what is the primary purpose of conducting disease surveillance programs?
To eliminate all cases of disease immediately
To conduct research of unrelated health issues
establish baselines for trend analysis and detect future epidemics
To provide treatment to all infected individuals
17
What is the predominant rabies virus variant along the entire eastern region of the US?
Raccoon variant
Skunk variation
Fox varient
Coyote varient
18
Q: What level of statistical significance (p-value) gives the highest confidence in the result?
A p-value of 0.10 is the most reliable
A p-value of 1.0 indicates a strong result
Higher p-values indicate better confidence
the lower the better; p ≤ 0.05 is generally acceptable
19
“A measure of the ability of a disease agent to establish itself in the host” is the definition of what epi concept?
Infectivity
Virulence
Morbidity
Age
20
After conducting a RCT, you conclude the exposure was neg. associated w the outcome. What is the measure of association?
Relative risk cannot be determined
Relative risk >1
Relative risk=0
relative risk <1
21
In the CDC’s PulseNet system, what type of information is used to link food borne illness cases?
Strength of assoication
Age
Genetic “fingerprints”
Sample size
22
In a descriptive study, what was identified as the largest determinant of “chance” in the overall degree of error?
Strength of assoication
Age
Patient position
Sample size
23
The significant intro of bias in the determination of an association between cause + effect is called what?
no significant association
strength of assoication
artificial association
Minimum association
24
A foodborne illness with longer incubation time + symptoms that span the GI tract: infection or intoxication?
Intoxication
Infection
25
When addressing disease associations and causality, how do we completely rule out chance?
We can eliminate chance by increasing sample size
Chance is only a factor in observational studies
we never completely rule out chance
We can always rule out chance with statistical signifiance
26
What notable figure founded LMU and what other famous university did he also found?
General Ulysses S Grant
Major General Oliver O. Howard
Robert E Lee
President Linclon
27
What type of transmission is represented by a mare transmitting a disease in utero to the developing foal?
Horizontal direct transmisison
Droplet direct transmission
Vertical direct transmission
Contact direct transmisison
28
A disease surveillance system that is very expensive +detects nearly all cases is likely to be what surveillance system?
Special surveillance system
Passive safety signal system
Active surveillance system
Passive surveillance system
29
What field of epidemiology classifies the occurrence of disease according to the variable of time, place, and person?
Expiermental epidemiology
Point prevalence study
Descriptive epidemiology
Analytic epidemiology
30
What is the percentage represented by the red area of this bell curve (1 SD on either side of the mean)
88%
98%
12%
68%
31
You administer a rapid test for a disease with a prevalence low (~2.1%) The test is approximately 95% sensitive and 95%
Very low (likely < 50%)
very high (likely >99%)
uncertain and variable
Moderate (around 75%)
32
What variable was identified as the most important factor when describing occurrence of disease or illness?
Race
Weight
Ethnicity
Age
33
What animal species is most responsible for transmitting rabies to humans in the US?
Cats
Birds
Dogs
Bats
34
If the prevalence of a disease decreases, what is the effect on positive predictive value of the test for this disease?
PPV is unaffected by the test's sensitivity
PPV remains constant regardless of prevalence
PPV increases as prevalence decreases
PPV decreases as prevalence decreases
35
What does it mean if an analytic study determines that the null hypothesis is acceptable?
There is a significant negative association
there is no significant association between the variables
The variables have a strong positive correlation
The null hypothesis is invalidated
36
What does an odds ratio of >5 indicate in regard to the exposure and disease relationship?
Suggest that the exposure is beneficial for preventing the disease
strong evidence that the exposure contributed to the disease
Weak evidence that the exposure had no effect on the disease
Indicates that the disease is unrelated to any exposure
37
What animal species is (by far) most responsible for transmitting rabies to humans in the world?
Cats
Dogs
Bats
Birds
38
What epidemiologic term/phrase refers to gradual changes in the frequency of disease over long periods of time
Secular trend
Epidemic curve
Seasonal trend
Cyclic trend
39
“The ability of a particular disease agent to produce disease in another host” defines what epi term?
Immunogenicity
Toxicity
Age
Pathogenicity
40
Briefly describe how cases and controls are selected for case-control studies
Controls: those with disease + cases are selected from healthy individuals
Cases are selected based on age,while controls are selected based on gender
Cases are randomly selected from the general population
case are those with the disease + controls are selected w similar character
41
The KY State Public Health Veterinarian works within what State department?
Department of Environmental Protection
Department of Agricultural
State Department for Public Health
State Department of Education
42
___________ is the “numerical expression of the likelihood of occurrence?”
Estimation
Calculation
Statistics
Probability
43
What is the definition of the “population at risk” in epidemiology
members of overall population who are capable of developing the disease
People who are immune to the disease
Individuals who have already contracted disease
All members of the population regardless of the health status
44
“Ongoing observations without taking action based on the outcome” defines what type of surveillance?
Verification
Monitoring
Evaluating
Administering
45
What is the number one goal of a disease outbreak investigation?
Determine the cause of the disease
Establish a case definition
Establish baslines for trend analysis and detect future epidemics
Stop the outbreak
46
What does an odds ratio of >5 indicate in regard to the exposure and disease relationship?
The exposure is irrelevant to the disease
The exposure increased the risk of the disease
The exposure had no effect on the disease
the exposure provided protection from the disease
47
What type of transmission best describes an outbreak with this epi curve shape?
Point source outbreak
Continuous outbreak
Intermittent outbreak
Continuing source outbreak
48
what disease is the primary regulatory focus of the State Public Health Veterinarian?
Ebola
Malaria
Influenza
Rabies
49
250 individuals in a susceptible population of 5000 contract a disease. Of 250, 25 died What is the case fatality rate?
5%(25/500)
20% (50/250)
10% (25/250)
15% (25/167)
50
Between foodborne intoxications, toxico-infections and infections, which group tends to exhibit long incubation periods?
Bacteria
Inflammation
Infections
Viruses
51
What analytic epi. term/phrase refers to the degree to which the study has used methodologically sound procedures?
internal validity
Internal validity
Specificity
External validity