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Updated: May 21, 2026

A Tuberculosis Molecular Bacterial Load Assay (TB-MBLA)
Published on: April 30, 2020
[The positive response rate with QuantiFERON-TB GOLD In-Tube in patients with Mycobacterium avium complex]
Niro Okimoto1, Fumiyo Nanba, Takeyuki Kurihara
1Department of General Internal Medicine 1, Kawasaki Hospital, Kawasaki Medical School, 2-1 -80, Nakasange, Kita-ku, Okayama-shi, Okayama 700-8505, Japan. n.okimoto@kawasaki-hp.jp
Objective:
We studied the positive response rate with QuantiFERON-TB GOLD In-Tube in patients with Mycobacterium avium complex disease.
Materials And Methods:
We evaluated 62 subjects with M. avium complex disease. QuantiFERON-TB GOLD In-Tube was performed for all the subjects. The positive response rate with QuantiFERON-TB GOLD In-Tube and the history of pulmonary tuberculosis in patients who showed a positive response were evaluated.
Results:
Seven patients (11.3%) showed a positive response with QuantiFERON-TB GOLD In-Tube. These patients were elderly (age, 72-87 years) and had a history of pulmonary tuberculosis. Eleven other patients with a history of pulmonary tuberculosis showed a negative response with QuantiFERON-TB GOLD In-Tube.
Conclusion:
Half or less than half of the elderly patients with M. avium complex disease and a history of pulmonary tuberculosis showed a positive response with QuantiFERON-TB GOLD In-Tube.
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