Tuberculosis is transmitted by the transmission of Mycobacterium tuberculosis. How can I kill Mycobacterium tuberculosis? The resistance of Mycobacterium tuberculosis is relatively strong, and it can tolerate cold, even to the freezing point, which does not kill it, and even to liquid air (i.e., minus 189 degrees Celsius), which is as cold as that, it can tolerate for a few hours. Mycobacterium tuberculosis also has heat-resistant adaptability in a dry state. However, Mycobacterium tuberculosis cannot tolerate moist heat and will die in a humid condition at 95 degrees Celsius in as little as 1 minute. Therefore, Mycobacterium tuberculosis is resistant to cold and dry heat, but not to humid heat. Therefore, the easiest way to disinfect the heat-resistant utensils and utensils used by TB patients is to boil them, for example, food utensils, clothes, handkerchiefs and masks can be boiled for 10-15 minutes, while books, quilts and other supplies cannot be boiled with water. They can be disinfected in the sun or with ultraviolet lamps. Direct sunlight and ultraviolet rays also have the effect of killing Mycobacterium tuberculosis. If it is not suitable for disinfection by heating or sunlight, alcohol can be used for disinfection of items that have been touched by patients or used by patients. Many chemicals, such as lysol, lime water, carbonic acid, hydrogen peroxide, iodine, alcohol, 84 disinfectant, etc., can kill Mycobacterium tuberculosis, although the time required varies, from a few minutes to several hours. In conclusion, we should take appropriate disinfection measures for the food utensils and daily necessities used by TB patients, insist on disinfection and strict disinfection to eliminate the spread of infectious agents, and only in this way can we prevent the creation of new TB patients.