公共卫生是通过研究影响公众生命和健康安全的各类因素来制定政策措施,改善生物和社会环境,实施卫生监测和预警及应急处理对策,控制和消灭危害生命的因素,保护公众健康的一门科学。可见,公共卫生事业具有广泛的社会性,涉及到人类生活、社会和经济的各个领域,既要全面提高当代人 Public health is to develop policies and measures to improve the biological and social environment by studying various factors that affect public life and health and safety, implement health monitoring and early warning and emergency response measures, control and eliminate life-threatening factors, and protect public health science. It can be seen that the public health undertaking has a wide range of social aspects and involves all fields of human life, society and economy. It is necessary to raise the overall scale of contemporary people