Non-cystic fibrosis bronchiectasis (NCFB) is a chronic, progressive respiratory disease characterized by permanent and abnormal dilation of the bronchial walls, mucociliary dysfunction, mucus plugging with chronic bronchial inflammation (1–4). Recurrent respiratory infections can accelerate the progression of the disease, worsening the quality of life and increasing mortality (5,6). An important finding in these patients is the frequent colonization and infection of the bronchial mucosa by potentially pathogenic microorganisms such as Haemophilus influenzae or Pseudomonas aeruginosa (7), which are associated with the onset of the chronic inflammatory process.
