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.