无论在发达国家还是在发展中国家,食源性疾病都是非常普遍的公共卫生问题。据报道,美国每年有7 600万食源性疾病患者,导致32.5万人住院,5 000人死亡[1];由生物因素引起的食源性疾病爆发次数占总发生次数的83%。英国每年有237万食源性疾病病人,占英国人口的1/3[2]。中国作为最大 Food-borne diseases are a very common public health problem in both developed and developing countries. It is reported that 76 million food-borne diseases occur each year in the United States, leading to 325,000 hospitalizations and 5,000 deaths [1]; and the number of food-borne diseases caused by biological factors has accounted for 83% of the total number of occurrences. There are 2.37 million food-borne illnesses in Britain every year, accounting for one-third of the British population [2]. China as the largest