Purpose of 2005 Guidelines. Update and replace 1994 Mycobacterium tuberculosis infection control (IC) guidelines Further reduce threat to health-care workers (HCWs) Expand guidelines to nontraditional settings Simplify procedures for assessing risk
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Risk varies by
Linked to close contact with infectious TB patients during procedures generating aerosols
Respiratory ProtectionFundamentals of Infection Control Hierarchy of Infection Control
All settings should perform risk classification as part of risk assessment to determine need for and frequency of an HCW testing program, regardless of likelihood of encountering persons with TB disease.
Risk classification:Medium (because of HIV-infected persons)
Risk classification:Low. Could be medium if FB workers are from TB-prevalent countries, or large number of clients are HIV infected.
Objectives of contact investigation: