Detection of in Milk and Clinical Samples by Magnetic Immunocaptured-Loop-Mediated Isothermal Amplification Assay.

is an important human food-borne zoonosis bacterial pathogen， and can cause clinically severe diarrhea. There is an urgent need to develop a specific， sensitive， and rapid methodology for detection of this pathogen. In this study， loop-mediated isothermal amplification (LAMP) combined with magnetic immunocapture assay (IC-LAMP) was first developed for the detection of in pure culture， artificial milk， and clinical stool samples. This method exhibited a detection limit of 8.7 CFU/mL. Compared with polymerase chain reaction， IC-LAMP is sensitive， specific， and reliable for monitoring Additionally， IC-LAMP is more convenient， efficient， and rapid than ordinary LAMP， as it is more efficiently enriches pathogen cells without extraction of genomic DNA. Under isothermal conditions， the amplification curves and the green fluorescence were detected within 30 min in the presence of genomic DNA template. The overall analysis time was approximately 1 h， including the enrichment and lysis of the bacterial cells， a significantly short detection time. Therefore， the IC-LAMP methodology described here is potentially useful for the efficient detection of in various samples.