Q fever is a zoonosis caused by Coxiella burnetii that presents with a wide spectrum of acute and chronic manifestations. Progression to chronic Q fever is frequently associated with valve and vascular prosthesis, aneurisms, pregnancy, immunosuppression, and advanced chronic kidney disease. We present a case of a kidney transplant recipient with persistent fever of unknown origin, negative blood cultures, anemia, and increased erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP). Q fever serological tests were suggestive of chronic Q fever and the patient was diagnosed with probable chronic Q fever according to the Dutch Fever Consensus Group Guidelines. Initiation of doxycycline 200 mg/d and hydroxychloroquine 600 mg/d resulted in clinical remission. Chronic Q fever is a high-morbidity and -mortality disease if untreated and special attention has to be given to high-risk patients, such as kidney transplant recipients.
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