Brucellosis is an infectious disease caused by the species of bacteria Brucella. Animals are the primary host for bacteria; they are transferred from animals to humans (secondary host) by eating undercooked meat and unpasteurized dairy products. The symptom for brucellosis varies from mild like simple flu, fever, headache to acute like tissue and dysfunction of organs. Due to its complicated symptoms, the diagnosis of brucellosis is difficult but blood and bone marrow samples are still used for its diagnosis. Different techniques like culturing, molecular methods, and serological tests are used for its diagnosis. Antibiotics are used to prevent relapses and to minimize their symptoms. Antibiotics alone or the combination of two are used for the treatment of brucellosis. Other precautionary measures like safety and hygienic conditions should be considered to prevent disease.