Objectives: Nebulized hypertonic saline (HTS) has beneficial effects including reducing pulmonary exacerbations in Cystic
Fibrosis (CF) patients. Several mechanisms may explain these effects but antimicrobial activity of NaCl remains largely
unexplored. We aimed to measure the antimicrobial effect of NaCl on Pseudomonas aeruginosa isolated from the respiratory
tract in CF patients.