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Bronchoalveolar lavage enzyme-linked immunospot for diagnosis of smear-negative tuberculosis in HIV infected patients
(Public Library of Science, 2012-06-26)
Background: Peripheral blood interferon-gamma release assays (IGRAs) have sub-optimal sensitivity and specificity for diagnosis of active pulmonary tuberculosis (TB). However, assessment of local immune responses has been ...
Nucleic acid amplification tests for diagnosis of smear-negative TB in a high HIV prevalence setting: a prospective cohort study
(Public Library of Science, 2011-01)
Background: Nucleic acid amplification tests are sensitive for identifying Mycobacterium tuberculosis in populations with positive sputum smears for acid-fast bacilli, but less sensitive in sputum-smear-negative populations. ...