Before liberation, the health situation in China was extremely backward, and various diseases did great harm to people. Health cadres are extremely scarce. Only a few big cities have medical institutions, and working people have no chance to see a doctor. Although there are a large number of Chinese medicine practitioners, they are discriminated against and cannot develop. After liberation, due to the concern of the Communist Party of China (CPC) and the people's government for people's health, health undertakings have developed rapidly. Under the guidance of the four principles of "facing workers, peasants and soldiers", "putting prevention first", "combining traditional Chinese and western medicine" and "combining health work with mass movements", it has become the central task of all medical workers to prevent and treat the most serious diseases that endanger people's health and improve people's health level. The patriotic health campaign centered on eliminating the four pests, stressing hygiene and eliminating major diseases not only eliminated vectors and improved environmental hygiene, but also established good health habits among the broad masses of the people, changed the country's health outlook and promoted industrial and agricultural production. In order to let the sick people get timely treatment. Since 195 1, the national industrial and mining enterprises have implemented labor insurance medical care for employees, and free medical care has been reduced or exempted for ethnic minority areas. Since 1952, the staff of state organs have implemented free medical care. The development of these health undertakings needs more health cadres and a higher level of medical prevention technology. In terms of cadre training, in the past decade, there have been more than 40,000 graduates from medical colleges, more than four times the number of graduates in the 20 years before liberation (1927- 1947), and more than150,000 graduates from secondary medical and health schools, more than three times the total number of graduates before liberation. In improving the technical level, medical colleges and many medical preventive institutions have quickly carried out research work. China Academy of Medical Sciences was established in 1957, with ten research institutes including experimental medicine, medicine, antibiotics, occupational health and protection, occupational diseases, epidemiology and microbiology, parasitic diseases, blood transfusion and hematology. Including basic medicine, clinical medicine, preventive medicine and pharmacy, and gradually formed a national medical science research center. Since 1958, local academies of medical sciences have been established in many parts of the country to lead the medical scientific research in various provinces, municipalities and autonomous regions, which has made the medical outlook in China look brand-new. The main aspects are summarized as follows:
Before liberation, the health situation in China was extremely backward. Various diseases do great harm to people's wings. Health depends on the department. Only a few big cities have medical facilities, and working people have no chance to see a doctor. Although there are many Chinese medicine practitioners, they are unable to make a difference. After liberation, due to the concern of the Communist Party of China (CPC) and the people's government for people's health, health undertakings have developed rapidly. In the "work-oriented"