17th February 2025

A 19-year-old man with cystic fibrosis presents to A&E with a worsening productive cough, fever and general malaise.

A 19-year-old man with cystic fibrosis presents to A&E with a worsening productive cough, fever and general malaise. He is treated with IV antibiotics, oxygen and fluids. Blood cultures are sent, and have grown Gram-negative rods. What is the most likely pathogen responsible?

Select the SINGLE most appropriate option from the list below. Select ONE option only.