Crab DO27 WGU

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School

Portage Learning *

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Course

152D

Subject

Health Science

Date

Jan 9, 2024

Type

pptx

Pages

23

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AJM3 TASK 1: COMMUNICABLE OUTBREAK ASSESSMENT Author Name (First, Middle Initial, Last) Leavitt School of Health, Western Governors University D028:Advanced Health Assessment for Patients and Populations Instructor Name Date
TOPIC OUTLINE • Case Definition • Research Project Purpose Statement • Outbreak Control Measures • Outbreak Investigation Steps • Histogram • Disseminating Information Plan • Surveillance Methods • Incubation Period •Suspect Cases vs Probable Cases • Difference Between Outbreak Types • Mode Of Transmission • Case Fatality Rate • Cumulative Incidence • Attack Rates • Disseminating Information Plan
KEY COMPONENTS OF A CASE DEFINITION OF AN OUTBREAK • Clinical features • Lymph node swelling, shortness of breath, productive cough • Flu like symptoms • Person • Residents local to Crab Apple Valley and those affected in the hospital after having a close encounter • Place • Crab Apple Valley and Golden Valley Hospital • Time • From the times symptoms were reported • 8/1/21-8/7/21
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STEPS OF THE OUTBREAK INVESTIGATION Identify Surveillance Team 2. Establish Existence of outbreak 3. Verify Diagnosis 4. Construct Case Definition 5. Find Cases 6. Conduct Research Study 7. Evaluate Hypothesis 8. Implement Control Measures 9. Communicate Findings 10. Maintain Surveillance
SURVEILLANCE METHODS • Active surveillance • More time consuming • More expensive • Requires more personnel • Performs contact tracing • Passive surveillance • Requires a form to be submitted • Provides limited information
SUSPECT CASES • Meets the case definition • Has signs & symptoms • Presents during the time frame • 73 people at the farmer's market • 31 employees from Golden Valley Hospital • 104 total suspect cases
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PROBABLE CASES • Meet case definition • Have signs & symptoms • Present during given time frame • AND they have laboratory confirmation • Diagnosis • Bacteriological culture • Sputum for Yersinia Pestis F1 antigen • Chest x-ray • 62 from the farmer's market • 31 from Golden Valley Hospital • 93 total Probable Case
MODE OF TRANSMISSION Direct • From person-to-person • It was spread via direct contact at farmers market and the hospital • Droplets and contact • Indirect • Airborne transmission • Affected those not in direct contact but in proximity • Farmers market & hospital workers • Vector-to-Person • Jack was bit by fleas on his farm
UTILIZATION OF CUMULATIVE INCIDENCE
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CALCULATION OF CUMULATIVE INCIDENCE Calculated: The number of New cases/population at risk per 1,000
DISEASE OUTBREAK INVESTIGATION PURPOSE STATEMENT • Aim: to prevent further infection • Proposed study: Quantitative via Case Control • Hypothesis: "Individuals will be considered as a suspect case if positive contact with known exposure on or after August 1at the Crab Apple Valley farmer • markets or Community Hospital exhibiting fever with or without painful, • swollen lymph nodes, chills, cough, and weakness" (Western Governors • University, n.d.
STUDY DESIGN
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STUDY DESIGN JUSTIFICATION
OUTBREAK HISTOGRAM SCREEN CAPTURE
INCUBATION PERIOD
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DIFFERENCES BETWEEN OUTBREAK TYPES
CASE FATALITY RATE
PRIMARY AND SECONDARY ATTACK RATES
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OCCURRENCE OF ATTACKS
OUTBREAK CONTROL MEASURES
DISSEMINATING INFORMATION PLAN
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REFLECTION
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REFERENCES
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