TB Contact Investigation Interviewing Skills Course
Day 1: Course Introduction
Text Only Version
Slide Number | 508 Compliance Text |
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1 | (Title Slide). Introduction to Contact Investigation Process |
2 | Learning Objectives After this session, participants will be able to:
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3 | Priority TB Control Activities
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4 | Contact Investigations: A Priority TB Control Activity
-Second in importance only to detection and treatment of TB disease [IMAGE: A man and a woman having a discussion while sitting in chairs facing each other.] |
5 | What is a Contact Investigation?A systematic process to:
[IMAGE: Ten black spokes radiating from a pink circle.] |
6 | Who are TB Contacts?Contacts are persons who have shared airspace with a person with infectious TB disease. This might include
[IMAGE: A circle with a TB case in the middle showing people the case might encounter at work, home, and/or leisure activities around the circle.] |
7 | Why is it Important to Conduct TB Contact Investigations? (1)CIs help to:
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8 | Why is it Important to Conduct TB Contact Investigations? (2)
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9 | Who is Responsible for TB Contact Investigations?
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10 | Group Discussion
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11 | (Title Slide). Core Concepts and Skills Required for Conducting TB Contact Investigations |
12 | What Core Concepts and Skills are Required to Conduct TB Contact Investigations?
Difference between LTBI and TB disease
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13 | Contact Investigation Core ConceptsTB Transmission |
14 | Remember: TB is Transmitted Person to Person! Every TB case Began as a TB contact [IMAGE: Stick people showing how TB can be transmitted.] |
15 | TB Transmission
[IMAGE: A person with infectious TB expels tiny particles containing M. tuberculosis (droplet nuclei) into the air and infects another person.] |
16 | What Factors Influence TB Transmission? The probability that TB will be transmitted depends on the following factors:
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Characteristics associated with infectiousness:
[IMAGE: A woman coughing into her cupped hands.] [IMAGE: An x-ray of lungs with an arrow pointed at the diseased area of the lungs.] |
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Contacts at higher risk for TB
* “A lot of time” is difficult to define, but may be determined locally based on experience [IMAGE: A smiling man and woman sitting close and drinking a beverage.] |
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Environmental characteristics that increase chances of TB transmission: [IMAGE: A House.] |
20 | STOP the Chain of TransmissionThe BEST way to stop transmission is to Identify and isolate infectious persons Start infectious persons on effective treatment for TB disease[IMAGE: Male and female stick people handing hands.] |
21 | Contact Investigation Core Concepts TB Pathogenesis |
22 | What Happens Once Someone is Exposed To TB?
Not every person who is exposed to TB becomes infected |
23 | Latent TB Infection (LTBI)LTBI – immune system keepstubercle bacilli under control LTBI characteristics Usually positive TST or IGRA Not infectious No symptoms Normal chest x-ray Sputum smears and cultures are negative Not a “case” of TB[IMAGE: A granuloma surrounding tubercle bacilli.] |
24 | Active TB DiseaseTB disease – immune system cannot stop tubercle bacilli from multiplying leading to active TB disease Usually affects lungs, but can affect other areas of the body Characteristics usually include: Positive TST or IGRA Infectious (before treatment) Symptoms Abnormal chest x-ray Positive sputum smear and culture Considered a “case” of TB[IMAGE: A granuloma opened up and releasing tubercle bacilli.] |