Acute eosinophilic pneumonia: case reportA 74-year-old man developed acute eosinophilic pneumonia (AEP) during treatment with ceftaroline fosamil for left shoulder osteomyelitis.The man had a history of hypertension, and left shoulder osteomyelitis for which he had been receiving IV ceftaroline fosamil [ceftaroline; dosages not stated]. Thereafter, he presented to the emergency department with shortness of breath, fever and worsening of left shoulder secretions. On presentation, further investigations showed bilateral patchy infiltrates with associated pleural effusions. Upon further discussion with family members, it was noted that he had a recent exposure with a coronavirus disease (COVID-19) infected family member. Based on clinical history, laboratory and radiographic findings, a diagnosis of ceftaroline fosamil-induced AEP was made [duration of treatment to reaction onset and outcome not stated].