Brucellosis as the Cause of Pediatric Fever of Unknown Origin

Brucellosis is the most common zoonotic infection that causes diseases in humans and is continuously a gross public health issue worldwide. Generally, physical examinations are normal or only minimally abnormal and the diagnosis is made on the basis of the history and serologic studies. Disease can be mild and self-limited or fulminant with severe complications. Here is reported a case of a seven years old boy hospitalized for Fever of Unknown Origin. He had no clues on medical history and physical examination. No changes were found on laboratory parameters; normal blood count and normal inflammatory indicators resulted. After a careful investigation, the diagnose of Brucellosis was concluded. Persistent or prolonged fever may be the only presenting symptom in children. The growing phenomena of international tourism and migration have directed interest in Brucellosis as it is increasingly recorded in non-endemic countries.