在我国,“预防为主”作为卫生工作的四大方针之一,不仅有其深远的历史意义,而且有其重要的现实意义。承担预防医学任务的各级卫生防疫机构与其它各条战线一样,在不同的地区和不同的历史时期,都有它不同的工作重点。卫生防疫工作的重点,一是对人民群众危害最大的疾病的预防;二是从事那些以较 In China, “prevention is the main” as one of the four major principles of health work, not only has its far-reaching historical significance, but also has its important practical significance. The health and anti-epidemic agencies at all levels that undertake preventive medical tasks, like all other fronts, have different priorities in different regions and different historical periods. The focus of the work on health and epidemic prevention is to prevent the most harmful diseases of the people;