Ochrobactrum anthropi is a Gram-negative bacillus widely distributed in nature. It is a low virulence and low pathogenic microorganism and human infection by this agent is considered rare. This microorganism can cause bacteremia and in some cases can lead to osteomyelitis and endocarditis. Included in Brucellaceae family, this bacterium is phenotypically and genetically closely related to the B...

To the Editor: In industrialized countries, blood culture is negative for 2.5%–31% of infectious endocarditis cases (1). In developing countries such as South Africa (2), Algeria (3), and Pakistan (4), culture is negative for 48% to 56%. Negative cultures delay diagnosis and treatment, which profoundly affects clinical outcome. Negative blood cultures commonly result from previous administratio...

brucellosis is a major health problem in many parts of the world, particularly in the mediterranean and middle east. very few data on the frequency and diversity of haematological abnormalities occurring in brucellosis have been reported. in the present study 85 patients with brucellosis in imam khomeini hospital during 1997-2002 were investigated retrospectively to determine the haematological...

Antibodies to B. melitensis were detected by agglutination by using the Rose Bengal and Brucella Wright tests (both from BioRad, Hercules, CA, USA). Of the 63 patients, 9 had a positive antibody response against a tested antigen (Table): 1 to phase I C. burnetii and 8 to Bartonella spp. (IgG >200). Of these, 7 had a 1-fold dilution higher titer to B. quintana than to B. henselae, including 1 wi...

Pathogenic brucellae are the agent of brucellosis, a disease that causes abortion and infertility in natural hosts such as sheep, goats, or cattle. Brucella melitensis, Brucella abortus, and Brucella suis are the most pathogenic Brucella species for humans and also the most relevant bacteria involved in economical loses and in animal and human health problems. In addition, these Brucella repres...

Background Brucellosis is a bacterial infection, caused by the nonmotile gram-negative aerobic coccobacilli. The clinical manifestation of brucellosis is variable, ranging from mild disease to severe disease. The gold standard test to confirm the diagnosis of brucellosis is assaying blood, bone marrow, or other body fluids or by tissue culture. Preferred first-line treatment in adults with unco...