Medicine Most common pathogen causing, pulmonary infection in cystic fibrosis in infants & young children is A Staphylococcus Aureus B Pseudomonas Aeroginosa C Bukholderia Cenocapacea D Nontubercular mycobacteria 💡 Explanation Most common pathogen causing, pulmonary infection in cystic fibrosis in infants & young children is ✓ Correct Answer: A. Staphylococcus Aureus