We all know that tuberculosis is the most serious respiratory disease in our country. But why do you say that? That’s because tuberculosis has one of the highest mortality rates of any respiratory disease, and it used to kill a quarter of all adult patients. Therefore, tuberculosis is definitely a disease that cannot be ignored. Here is a statistical perspective on the dangers of tuberculosis. 1. China has the second highest number of tuberculosis cases in the world, second only to India. 2. According to the latest epidemiological survey in 2015, there are currently 4.5 million people with TB in China, which means that about one out of every 2-3 people has TB infection. Of these, 600,000 are being treated, and about 1.3-1.5 million of these people have infectious TB. 3, TB also has a high mortality rate, according to statistics, about 130,000 people die from TB each year worldwide. 4, research shows that a sputum-positive tuberculosis patients, if not treated, an average of 13 people can be infected in a year, and these 13 people, there is a 5% chance of getting tuberculosis, thus becoming a new source of infection. 5, in the early stage of the disease, 20% of patients do not have obvious symptoms, which makes many people can not be detected and timely diagnosis, once found, it is already very serious. 6. In addition, Mycobacterium tuberculosis can always make things worse for people. For example, if we have a surgery, or if the body’s immunity is reduced or disturbed due to various reasons such as pregnancy, Mycobacterium tuberculosis can develop or worsen at this time. A pregnant woman who was 5 months pregnant and had a cough for 8 months was not taken seriously and finally died of hemoptysis. Mycobacterium tuberculosis is always around us, and almost all of us have been exposed to it unless we live deep in the mountains, in sparsely populated areas, or are newborns. Perhaps you have not noticed that when doctors diagnose tuberculosis, many of them write secondary tuberculosis, which means re-infection with tuberculosis and disease. Therefore, tuberculosis should not be taken lightly, either in terms of treatment or prevention.