Brucellosis is usually not a sequela in later years after it is cured. The so-called brucellosis, or brucellosis, also known as undulant fever, is a disease with a favorable prognosis, which is an infectious disease of animal origin induced by human infection with Brucella. The human body is generally susceptible to brucellosis, and once the disease has been acquired, a relatively strong immunity can be acquired, thus avoiding re-infection with the disease. Brucellosis is usually transmitted through skin and mucous membrane contact, but can also be transmitted through the respiratory tract and the gastrointestinal tract. The main clinical symptoms of brucellosis include prolonged fever, enlarged liver and spleen, and excessive sweating, as well as fatigue, joint pain, and enlarged lymph nodes. Brucellosis is a dangerous disease, and patients need to actively seek treatment and do not use medication on their own, as this may cause danger.