4th September 2020

A 38-year-old man presents with a two-week history of a dry cough

A 38-year-old man presents with a two-week history of a dry cough. He has been feeling unwell, with a headache, muscle aches and general fatigue, for around a month. He has also noticed a rash over the last week, which started on the backs of his hands and has spread up his arms onto his chest. He is normally fit and well and takes no regular medications. Examination reveals inspiratory crackles over the left lung base and slightly raised target lesions on the backs of the hands, arms, chest and back.

For the patient above, please select the SINGLE most likely causative organism. Select ONE option from the list above.