“…In recent years, macrolide antibiotics have been explored in several clinical trials for their effects on patients with CLD, including COPD, asthma, cystic fibrosis (CF), and non CFbronchiectasis (3,(5)(6)(7)(8)(9)(10)(11)(12)(13). Recently, several meta-analyses collected the data and confirmed that the long-term use of macrolides improves the quality of life of CLD patients by improving lung function and decreasing the frequency of acute exacerbations (14,15). However, no study has focused on their detrimental effects, especially on microbiological aspects.…”