Nontuberculous mycobacterial (NTM) lung disease is a chronic, progressive condition caused by nontuberculous mycobacteria. NTM lung disease occurs more frequently in older adults and people with other lung diseases, like bronchiectasis, and chronic obstructive pulmonary disease (COPD).

Asthma is a chronic respiratory disease, characterized by narrowing of the airways and excess mucus production. People with asthma typically suffer from chest tightness/pain, shortness of breath, and episodes of coughing and wheezing.