Outbreak Investigations - Outbreak Investigations Richard...

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Outbreak Investigations Richard Taylor, PhD
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Learning Objectives Describe how outbreaks are recognized Discuss and describe the reasons for outbreak investigations Describe the types of activities associated with outbreak investigations
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How outbreaks are recognized Clinicians Infection control practitioners Clinical laboratory workers Patients Routinely collected surveillance data Local newspaper or television news
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Reasons for Investigating Outbreaks Prevent additional cases Recommendations or strategies for preventing similar future outbreaks Describe new diseases Learn more about known diseases Evaluate existing prevention strategies Teach (and learn) epidemiology Address public concern
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Components of Investigation Epidemiologic investigation Environmental investigation Interaction with the public, press, legal system
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Considerations of Outbreak Investigations Identify the source and prevent additional cases Conclude quickly to address public concern Limited case numbers will limited methods for statistical analysis Well publicized outbreaks may bias response Pressure to resolve investigation quickly may lead to errors Delays in investigations may lead to loss of clinical/environmental samples.
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Essential Components of Outbreak Investigations 1. Establish case definition(s) 2. Confirm cases are “real” 3. Establish the background rate of disease 4. Define outbreak scope; Case finding 5. Examine descriptive epidemiologic features associated with the outbreak 6. Generate hypotheses 7. Test hypotheses
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Essential Components of Outbreak Investigations 1. Collect and test environmental samples 2. Implement control measures 3. Interact with the press, inform the public, tell the story
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Case Definition(s) Types of case definitions used Laboratory-confirmed case Clinical case
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This note was uploaded on 10/28/2010 for the course PHB 34567 taught by Professor Riegleman during the Fall '10 term at University of Texas at Austin.

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Outbreak Investigations - Outbreak Investigations Richard...

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