Brucellosis is not frequent in Chile but it may present with life threatening 
complications like endocarditis. The case reported refers to a 74 year old man 
admitted to the Infectious Diseases Hospital Dr. Lucio Córdova in Santiago. He 
had been febrile for 3 months with no specific symptoms. The trans-esophageal 
echocardiography confirmed multiple large vegetations and important involvement 
of the aortic valve. Blood cultures yielded Brucella abortus. The patient 
required cardiac surgery, along with antibiotics, and he had a satisfactory 
outcome, being alive at the moment of this report???. Brucellosis can be the 
responsible for prolonged fever of unknown origin. It is necessary to take in 
mind brucellosis to obtain the specific laboratory tests. For a best prognosis 
an early treatment with associated antibiotics for at least 4 a 6 weeks is 
important. If endocarditis is present valve replacement is often necessary.