A third sputum test on a man quarantined with a dangerous strain of tuberculosis was negative for the presence of TB bacteria, hospital officials said Tuesday, opening up the possibility that he could ...

QuantiFERON(R) TB Gold is a test used to diagnose tuberculosis (TB) infection by measuring interferon-gamma release. Test results are reported as: positive, negative, or indeterminate. The American ...

Although culture remains the gold standard for laboratory confirmation of TB, the CDC now recommends that nucleic acid amplification (NAA) testing become standard practice in helping to diagnose ...

Introduction. We reevaluated the usefulness of a whole-blood interferon-γ enzyme-linked immunosorbent assay (QuantiFERON TB-2G [QFT-TB]; Cellestis) in obtaining a differential diagnosis between active ...