Tuberculosis generally requires isolation. Tuberculosis is contagious, usually through droplet transmission, and if you often have close contact with tuberculosis patients, it may also lead to infection of tuberculosis. TB is mainly caused by the invasion of Mycobacterium tuberculosis, if the body’s immunity is low may lead to invasion of Mycobacterium tuberculosis, so it will induce the disease, especially the elderly, infants and young children are more susceptible to tuberculosis. If someone close to you develops TB, it is important to isolate them, stay away from people with the disease, pay attention to air circulation, and avoid places where people gather. If TB is already present, medication such as isoniazid and rifampicin should be used under doctor’s supervision to avoid worsening of symptoms.