Medicine The most commonly encountered bacterial pathogens in the lungs of patients with cystic fibrosis are: A E. coli and alpha Streptococcus B E. coli and Pseudomonas C Staphylococcus and Proteus D Staphylococcus and Pseudomonas 💡 Explanation The most commonly encountered bacterial pathogens in the lungs of patients with cystic fibrosis are: ✓ Correct Answer: D. Staphylococcus and Pseudomonas