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11 Cards in this Set
- Front
- Back
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What is an outbreak?
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an excess of cases in a population
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What are the common outcomes when comparing outbreaks?
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common disease presentation
close together in time similar geographic location *the common exposure is the agent |
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What is the most common study type in an outbreak?
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case control because disease is occurring and cases are easy to find
*this study type is used in food borne |
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What are the four goals of an outbreak investigation?
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characterize the outbreak (who is at risk)
ID the causal factors (pathogen, risk factors) implement prevention evaluate interventions |
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Is it easier to identify an exotic disease or an endemic disease as an outbreak?
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exotic because you don't now the normal number of cases with endemic diseases
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How do you establish a diagnosis (step 2)
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do necropsies and send in complete tissue samples
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What are the two parts of a good case definition (step 3)?
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define characteristics shared by those that have the disease
define characteristics that distinguish cases from non cases |
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What should you know when classifying non cases?
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the incubation period of disease, animals may be exposed but not sick
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What should you do to establish the magnitude of the outbreak (step 4)?
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enhance surveillance
contact veterinarians and ask to report can do target surveillance |
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What info do you need to collect to ddescribe an outbreak by individual?
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history, clinical and productivity data on cases and non-cases
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What are things to consider after you develop a hypothesis?
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Test the hypothesis -> Design interventions -> Evaluate interventions
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