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Lecture 13 FBI Investigations II

Lecture 13 FBI Investigations II - Foodborne Illness...

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Foodborne Illness Investigations
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Develop a Working Case Definition Cases (3 categories): . 1 Suspected . 2 Presumptive . 3 Confirmed Non-cases Secondary cases
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Develop a Working Case Definition Suspected Case - Signs, symptoms, & incubation period compatible, but lab evidence absent, inconclusive or incomplete Presumptive Case - Signs, symptoms, & incubation period compatible; lab evidence of infection, but etiologic agent has not been found in specimens from patients, or no specimens were collected
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Develop a Working Case Definition Confirmed Case - person who has the signs & symptoms that are compatible, and there is either: * isolation of etiologic agent from patient * laboratory evidence of infection
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Develop a Working Case Definition Secondary Case - is a person who became infected from contact with a primary case or from a vehicle contaminated by a primary case. * Onset of illness for secondary cases typically is one or more incubation periods after the outbreak-associated cases.
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Make Epidemiologic Associations Make time, place and/or person associations Determine whether an outbreak occurred Formulate hypothesis / evaluate hypothesis * cohort studies and case-control studies Recommend or take precautionary control actions (if applicable) Inform public (if applicable)
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Investigate the Place where Foods were Mishandled Conduct on-site investigation * menus, recipes, formulations, invoices, HACCP records, absentee records, consumer complaints, etc.
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