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It's difficult to prove exactly when and how people with bronchiectasis acquire nontuberculous mycobacteria (NTM) from the environment. We present data showing long-term household exposures of a homeowner and development of NTM pulmonary disease following the onset of bronchiectasis and correlating disease onset with longitudinal environmental sampling in an NTM geographic hotspot.
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Honda et al. (2026) studied this question.
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