Hi,
Yes, brucellosis can be cured completely with the help of antibiotics,even widespread infection can be cured.You can't compare it with HIV which still is a lot under study and is a deadly disease.
There can be relapses of brucella and the disease can spread from you to any body with whom you can be in physical contact,but then prophylactically treatment can be given to them.
During the disease free period or once the disease has gone into remission, the disease should not spread from you ...
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