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Rate of Latent Tuberculosis Infection Detected by Occupational Health Screening of Nurses New to a London Teaching Hospital

  • Priya Khanna (a1), Vladyslav Nikolayevskyy (a2) (a3), Fiona Warburton (a4), Elek Dobson (a5) and Francis Drobniewski (a2) (a3)...


The prevalence of latent tuberculosis infection in a cohort of nurses new to a London hospital was 7.6% (13 of 171), using an interferon-γ(IFN-γ) release assay, and 16.2% (24 of 148), using the tuberculin skin test. On multivariate analysis, birth in a country with tuberculosis prevalence of more than 40 cases per 100,000 population was associated with positive results of both the IFN-γ release assay and the tuberculin skin test.


Corresponding author

National Mycobacterium Reference Unit, Queen Mary's School of Medicine and Dentistry, 2 Newark St., London, El 2AT, United Kingdom(


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