New research points to significant decreases in lower airway infections due to Pseudomonas aeruginosaStaphylococcus aureus and Haemophilus influenzae among young children with cystic fibrosis.

The study included 380 infants who underwent 1,759 bronchoalveolar lavages at two Australian hospitals from 2000 to 2018.

During the study, results showed decreases in the prevalence of lower airway infections with P. aeruginosaS. aureus, and H. influenzae. These decreases, the researchers noted, are likely why Aspergillus species — the prevalence of which did not significantly change during the study period — has recently become the most commonly isolated lower airway pathogen.