ＰＣＲ技术近几年来在分子生物学临床医学领域中得到了迅速的发展。目前，这种方法在微生物病原学诊断方面上也得到了广泛应用。为了快速、准确、不漏检引起食物中毒的病原菌（尤其是病情已得到控制的患者的大便已不存在活菌或含菌量很少，以及外环境和食品），我们作细菌培养? In recent years, PCR technology has been rapidly developed in the field of molecular biology clinical medicine. At present, this method has also been widely used in the diagnosis of microbial etiology. In order to quickly and accurately detect the pathogenic bacteria that cause food poisoning (especially in patients whose stools have been controlled, there is no live bacteria or very little bacteria, as well as the external environment and food), do we make bacterial culture?