The clinical symptoms of bovine tuberculosis are:

The incubation period of the disease is generally 3 to 6 weeks, and some can last as long as months or years.

The course of the disease is chronic, manifested by progressive weight loss, cough, dyspnea, and generally normal body temperature. Clinically, pulmonary tuberculosis, breast tuberculosis and intestinal tuberculosis are the most common. Lymph node tuberculosis and neural tuberculosis can also be seen.

Tuberculosis

It is characterized by long-term intractable dry cough, which is most obvious in the early morning. Affected animals are prone to fatigue and gradually lose weight. In severe cases, breathing difficulties may be seen.

Breast tuberculosis

The amount of milk gradually decreases or stops, and the milk is thin and sometimes mixed with pus. The breast lymph nodes are hard and swollen, but there is no heat and pain.

Intestinal tuberculosis

It is more common in calves and is characterized by alternating constipation and diarrhea or refractory diarrhea, with blood or pus in the feces.

Human tuberculosis

Tuberculosis can occur throughout the year, with pulmonary tuberculosis being the most common. The main clinical symptoms include: cough, sputum, hemoptysis, chest pain, asthma, etc.