A Three-year Longitudinal Assessment of Pseudomonas aeruginosa Antibiotic Susceptibility in Children With Cystic Fibrosis in the Era of Cystic Fibrosis Transmembrane Conductance Regulator Modulator Therapy.

Cystic fibrosis is a genetic disease characterized by chronic lung infection, often with Pseudomonas aeruginosa , requiring repeated antibiotic treatment for pulmonary exacerbations. In the era of cystic fibrosis transmembrane conductance regulator modulator therapy, we assessed susceptibility to antipseudomonal antibiotics in modulator-eligible and modulator-ineligible children over 3 years and found that P. aeruginosa isolates largely remained susceptible to standard parenteral but not oral antimicrobial agents.