How is brucellosis diagnosed?

Brucellosis is diagnosed through a sample of blood or bone marrow which is sent for bacterial culture, serology (antibodies to the bacteria) or molecular testing (polymerase chain reaction or PCR).

Last reviewed by a Cleveland Clinic medical professional on 08/20/2018.


  • Centers for Disease Control and Prevention. Brucellosis. Accessed 8/23/2018.
  • Genetic and Rare Diseases Information Center. Brucellosis. Accessed 8/23/2018.
  • Monarch Initiative. Brucellosis. Accessed 8/23/2018.


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