WGS of NTM From Sputum of NTM Lung Disease Patients and From Their Environments

Inclusion Criteria: * The adult over 18 years of age * The patient who have respiratory symptoms consistent with NTM, such as a chronic cough, sputum, and hemoptysis, who have NTM-positive findings on CT, and who have NTM identification in two or more sputum cultures or in one or more bronchoscopic/tissue culture. (2007 ATS/IDSA guideline) * Pairs of patients living in the same household since diagnosis on NTM lung disease * Consent to a collection of environmental samples from the patient's residence. Exclusion Criteria: * If the patient does not agree or withdraw.