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流行病学是研究人群中疾病与健康状态的分布及其影响因素,防止疾病发生,促进人群健康的一门医学学科[1]。流行病学的研究对象并不仅仅局限于传染病,它涉及到与人类健康有关的各种要素。实际上,在世界上包括我国在内的许多国家和地区,传染病早已不是导致国民死亡的主要因素,取而
Epidemiology is a medical discipline that studies the distribution and influencing factors of disease and health status in the population, preventing the occurrence of disease and promoting the health of the population [1]. Epidemiological research is not limited to infectious diseases, it involves a variety of elements related to human health. In fact, in many countries and regions in the world, including our own country, infectious diseases are no longer the major factor that has led to the death of the nationals. Instead,