Live a regular life Avoid prolonged overwork and mental stress, eat a balanced diet, and exercise appropriately to strengthen resistance. Prevent TB-related diseases such as diabetes, which can increase the chance of TB by 4 times. Another example is AIDS, which can increase the chance of TB 30 times. Others, such as silicosis, gastrointestinal diseases, tumors, organ transplants, long-term use of glucocorticoids, etc. Preventive treatment for high-incidence populations The focus is on infected children within the families of newly identified patients with disseminated TB, especially children under 5 years of age and members with tuberculin test reactions ≥15 mm or blisters. Prevention of TB transmission 1. Reduce TB transmission Strengthen health education so that everyone understands the hazards of TB and the mode of transmission (because it is respiratory transmission), and develop the hygienic habit of everyone not spitting; sputum from TB patients should be disinfected by burning or medication; patients should cover their mouths with handkerchiefs or wear masks when coughing or sneezing, and not talk loudly in close proximity to others; objects used by patients should be Disinfect and wash frequently. Tuberculosis bacilli are easily spread in poorly ventilated and more confined environments (such as winter dormitories, crowded group dormitories or work sheds). Therefore, we should make the habit of opening windows regularly and try to let daylight into the room. 3, pay attention to isolation, reduce contact with the source of infection Isolation of patients with bacteriophage tuberculosis, which do not go to crowded places with frequent human contact activities or work. Family members of the patient, in addition to active treatment and frequent ventilation, it is best to live in a separate room, and those who do not have conditions should also sleep in separate beds. 4. Vaccination of children with BCG vaccine BCG vaccination can help children develop a certain level of specific resistance, reduce the chance of infection, or limit the growth and reproduction of bacteria when infected with natural tuberculosis bacteria, reduce the number of bacteria, and play a role in the prevention of childhood tuberculosis, especially tuberculous meningitis and blood-borne severe tuberculosis. The target of inoculation is newborns.