A complete blood count, CRP, erythrocyte sedimentation rate, procalcitonin, serologic test for typhoid fever and brucellosis was performed [Table 3], as well abdominal ultrasound which excluded any visceral abscess, and an echocardiogram, which rule out infective endocarditis, but it showed an important pericardial infusion. The gene discussed is CRP; the disease is brucellosis.