Microbiology Which of the following organisms is unlikely to be found in the sputum of a patient with cystic fibrosis? A Haemophilus influenzae B Mycobacterium tuberculosis C Pseudomonas D Aspergillus fumigatus 💡 Explanation Which of the following organisms is unlikely to be found in the sputum of a patient with cystic fibrosis? ✓ Correct Answer: B. Mycobacterium tuberculosis