《社区预防与保健》中的实施策略之首是“三级预防”,它是按照中医学的“未病先防、已病防变、病后防复”的预防思想,针对健康与疾病的全过程,而提出来的具有很强科学依据的防治措施。三级预防内容:第一级预防为病因预防;第二级预防为临床前期预防;第三级预防为临床期预防。三 The “community-based prevention and care” in the implementation of the strategy is the first “three prevention”, it is in accordance with traditional Chinese medicine “not disease prevention, disease prevention change, prevention of illness” prevention thinking, for health and disease The whole process, and put forward a strong scientific basis for prevention and control measures. Three levels of prevention: the first prevention for the prevention of etiology; second prevention for the preclinical prevention; third prevention for the prevention of clinical. three