A 68-year-old man presented to the emergency department of the General Hospital of Larissa complaining of a high-grade fever for the last 10 days. He had been taking a broad-spectrum antibiotic (clarithromycin) and an antiviral drug (oseltamivir) for 3 days prior to his admission, with no improvement. His medical history included hypertension and well-controlled type 2 diabetes mellitus, under treatment with oral anti-diabetic agents. Arterial blood gases revealed acute hypoxemic (type I) respiratory failure.
