Brucellosis is one of the most frequent contagious and communicable zoonotic illnesses, with significant rates of morbidity and permanent sterility. Intra- and inter-specific infection rates have dramatically increased in recent years as a result of inadequate management and scarce resources, particularly in developing nations. In cattle, poor milk production and a high body temperature are the main symptoms of abortion in the last trimester, whereas in humans, undulant fever, general fatigue, and arthritis are the main symptoms. The complexity of brucellosis means that it still presents a significant risk to both human and animal health in poor nations.