Date: 13 Sep 2012

Sensitive and Rapid Detection of Campylobacter jejuni and Campylobacter coli Using Loop-Mediated Isothermal Amplification

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Loop-mediated isothermal amplification (LAMP) is an established nucleic acid amplification method offering rapid, accurate, and cost-effective diagnosis of infectious diseases. From the beginning of DNA extraction to final detection of Campylobacter jejuni and Campylobacter coli, the assay requires less than 50 and 90 min from a colony on selective media, and human feces, respectively. For chicken meat samples, the assay requires approximately 24–48 h from the beginning of the enrichment culture to final detection. The sensitivity of the LAMP assay is tenfold higher than that of the equivalent PCR assay. LAMP amplification can be judged by both turbidimeter analysis and visual assessment with the unaided eye. The LAMP assay is a powerful tool for rapid, simple, and sensitive detection of C. jejuni and C. coli, which may facilitate the investigation of C. jejuni and C. coli contamination in chicken, as well as the early diagnosis of C. jejuni and C. coli infection in humans.