[Irritable cough, fatigue, weight loss in a patient who has undergone cardiac surgery].

We report the diagnosis and clinical course of a 62-year-old patient with non-specific symptoms, such as dry cough, weight loss, increased fatigue, and a long-standing previously operated aortic graft prosthesis. Extensive investigations led to the diagnosis of a chronic infection of the aortic graft caused by Coxiella burnetii (Q-fever), following which an antibiotic therapy with Doxycycline and Hydroxychloroquine was established.