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Case finding

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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The control of tuberculosis requires the identification and treatment of infected individuals.

Case finding efforts may take two main approaches:

  • contact tracing:
    • 10% of TB cases are identified in this way
    • contacts undergo tuberculin testing and a chest X-ray
    • cases of TB are treated
    • follow-up appointments are required for some contacts who do not appear to have TB

  • mass chest radiography:
    • whole population screening in industrialised countries is not appropriate
    • high risk groups may benefit from radiographic screening:
      • homeless
      • refugees
      • elderly men with chronic cough
      • immigrants from the third world in first 5 years

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