流行病学定义

流行病学（Epidemiology）是研究特定人群中疾病、健康状况的分布及其决定因素，并研究防治疾病及促进健康的策略和措施的科学。
[原文]
Epidemiology is to study specific diseases , health condition of population distribution and its determinants of prevention and treatment of disease, and to promote health and research of the strategies and measures of science.