定量风险评估根据使用模型的不同,分为随机性模型和确定性模型两种类型[1]。微生物定量风险评估(Quantitative Microbiological Risk Assessment,QMRA)方法是采用数学模型,对某种致病微生物从农场到餐桌整个食物链的繁殖和传播过程进行描述,将消费者对某种致病微生物的估计暴露量作为变量输入剂量-反应关系,计算获得估计的人群感染和发病例数[2-5]。运用随机性模型的微生物定量风险评 Quantitative risk assessment according to the use of different models, divided into two types of random and deterministic models [1]. The Quantitative Microbiological Risk Assessment (QMRA) approach uses a mathematical model to describe the process of propagation and propagation of a pathogenic microorganism from the farm to the entire food chain, exposing consumers’ estimates of certain pathogenic microorganisms Dose as a variable to enter the dose-response relationship, calculate the estimated population infection and the number of cases [2-5]. Microbiological Quantitative Risk Assessment Using Random Models