21st June 2024

A 34-year old male with attends the emergency department with a one-day history of right sided chest pain

A 34-year old male with attends the emergency department with a one-day history of right sided chest pain, rigours, dyspnoea and a productive cough. He started treatment for HIV in the last 12 months, his CD4+ count has recently risen to 190 cells per mm3 from a nadir or 97 cells per mm3. His viral load was undetectable within 3 months of initiating treatment. A plain film of his chest shows right lower lobe collapse/consolidation.

What is the most likely organism creating this radiological appearance from the list below?

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