从检品中分得沙门氏菌,可直接接种于选择性分离培养基,也可以先增菌后再行分离。但是,直接分离的阳性检出率远不如先增菌而后分离的效果。最近有人报告在351份饮食从业人员的大便标本中,直接分离获得6份阳性,而先增菌后分离却得24份阳 Salmonella from the seized goods, can be directly inoculated in the selective separation of media, you can also add bacteria before separation. However, the positive detection rate of direct separation far less than the effect of the first enrichment and separation. Recently, it was reported that in 351 stool specimens of diet practitioners, 6 positive samples were directly separated, but 24 samples were positive