What is a major limitation of passive surveillance?
Risk, Rate and Odds

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Health Sciences, Biology
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It is too expensive to implement.
It often results in underreporting of cases.
It requires active participation from the public.
It is only used during outbreaks.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of surveillance involves testing blood samples for antibodies?
Sentinel surveillance
Syndromic surveillance
Serosurveillance
Whole genome sequencing
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of sentinel surveillance?
To survey the entire population
To track absenteeism in schools
To sequence the genome of pathogens
To monitor disease trends and detect outbreaks
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is 'risk' defined in epidemiology?
The total number of cases in a population at a given time
The chance of a health outcome occurring in a defined population over a specific time
The probability of an event occurring divided by the probability of it not occurring
The number of new cases divided by person-time
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between 'rate' and 'risk'?
Rate is a measure of prevalence, while risk is a measure of incidence.
Rate includes person-time in the denominator, while risk does not.
Rate is used for chronic diseases, while risk is for acute diseases.
Rate is always higher than risk.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When do odds and risk become noticeably different?
When the study duration is long
When the population size is small
When the incidence of an event is high
When the incidence of an event is very low
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the odds of an event are greater than one, what does it imply?
The event is equally likely to happen as not.
The event is more likely to happen than not.
The event is less likely to happen than not.
The event will definitely happen.
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