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Jie Yeun Park 1 Article
Multiplex Real-time Polymerase Chain Reaction Assays for Simultaneous Detection of Vibrio cholerae, Vibrio parahaemolyticus, and Vibrio vulnificus
Jie Yeun Park, Semi Jeon, Jun Young Kim, Misun Park, Seonghan Kim
Osong Public Health Res Perspect. 2013;4(3):133-139.   Published online June 30, 2013
DOI: https://doi.org/10.1016/j.phrp.2013.04.004
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AbstractAbstract PDF
Objectives
A multiplex real-time polymerase chain reaction (RT-PCR) method was developed for the identification of three Vibrio species: Vibrio cholerae, Vibrio parahaemolyticus, and Vibrio vulnificus.
Methods
Specific primers and probes targeting the hlyA, tlh, and vvhA genes were selected and used for multiplex real-time PCR to confirm the identification of V. cholerae, V. parahaemolyticus, and V. vulnificus, respectively. This method was applied to screen Vibrio species from environmental samples and combining it with a culture-based method, its effectiveness was evaluated in comparison with culture-based methods alone.
Results
Specific PCR fragments were obtained from isolates belonging to the target species, indicating a high specificity of this multiplex real-time PCR. No cross-reactivity with the assay was observed between the tested bacteria. The sensitivity of the multiplex real-time PCR was found to have a lower limit of 104 colony-forming units/reaction for all three Vibrio species. The combination strategy raised the isolation ratio of all three Vibrio species 1.26- to 2.75-fold.
Conclusion
This assay provides a rapid, sensitive, and specific technique to detect these three Vibrio species in the environment.

PHRP : Osong Public Health and Research Perspectives