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28 Terms

1

What is Infectivity?

% of exposed that become infected (# of ppl who are exposed that will eventually become infected)

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2

What’s Pathogenicity?

% of ppl that become clinically ill (of the ppl infected, how many of them will become clinically ill=show symptoms)

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3

What’s Virulence

% of clinically ill ppl who will become servilely ill or die.

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4

What is a Carrier?

a person who harbors a specific agent with the absence of discernible clinical disease & can serve as a potential source of infection.

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5

A Carrier is a person who maybe?

  • Colonized

  • Infected & Asypomtimatic

  • preclinical/incubation period

  • recover from a acute disease

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6

Is the Carrier Status short or lengthy?

dependent on illness (it can be either)

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7

What’s an Endemic?

is a disease that occurs at it’s regular rate within a time frame that is expected of the disease.

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8

What’s an Epidemic?

is a disease that occurs outside the regular/usual state(rate) of infection. (it’s above what is expected)

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9

What’s a Pandemic?

Happening in multiple countries & contents

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10

What’s sporadic disease?

ideas that happens randomly in population

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11

What’s a Hyperdenmic?

a disease that’s more than a epidemic but doesn’t count as a pandemic.

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12

What are the 13 steps in Outbreak Investigation?

  1. Prepare Field work

  2. Establish the essence of an outbreak

  3. Verify Diagnosis

  4. Construct a working case definition

  5. Find cases systematically & record info

  6. Perform descriptive epidemology

  7. Develop Hypothesis

  8. Evaluate Hypotheses Epidemiologically

  9. As necessary, reconsider, refine & re-evual hypotheses

  10. Compare & recline with laboratory &/or environmental studies

  11. Implement control & prevention measures

  12. Initiate or maintain surveillance

  13. communicate findings

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13

In an Outbreak investigation what does step 1. Prepare for Field Work look like?

  • scientifically investigate the issue & equipment

  • get ready team members & collaborators

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14

In an Outbreak investigation what does step 2. Establish the existence of an outbreak look like?

  • cluster vs. outbreak (related or not related)

  • How to check the expected

  • Take into account factors of: disease, political issues, public relations & timing

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15

In an Outbreak investigation what does step 3. Verifying the Diagnosis look like?

  • reviewing clinical/lab results

  • visting patients

  • summarize clinical features

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16

In an Outbreak investigation what does step 4. Constructing a Working case definition look like?

  • a case —> person with the condition

  • Having a Clinical deification (illness with sudden onset symptoms)

  • Having Laboratory criteria for diagnosis (potisitve tests)

  • Working field Case Classification

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17

In an Outbreak investigation what does step 5.Finding cases systematically & record info look like?

  • Identifying info

  • demographics

  • clinics

  • risk factors

  • reporters

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18

In an Outbreak investigation what does step

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19

In an Outbreak investigation what does step

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20

In an Outbreak investigation what does step

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21

In an Outbreak investigation what does step

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22

In an Outbreak investigation what does step

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23

In an Outbreak investigation what does step

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24

In an Outbreak investigation what does step

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25

In an Outbreak investigation what does step

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26

In an Outbreak investigation what does step

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27

In an Outbreak investigation what does step

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