jernardduncan4289 jernardduncan4289 26-03-2024 Biology contestada What is the most common cause of pulmonary infections in infants and young children with cystic fibrosis (CF)? 1) Streptococcus pneumoniae 2) Haemophilus influenzae 3) Staphylococcus aureus 4) Pseudomonas aeruginosa