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Diagn Microbiol Infect Dis. 2008 Jul;61(3):294-301. doi: 10.1016/j.diagmicrobio.2008.02.009. Epub 2008 Apr 3.

Development of multiplex real-time hybridization probe reverse transcriptase polymerase chain reaction for specific detection and differentiation of Enterovirus 71 and Coxsackievirus A16.

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1
Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.

Abstract

Large outbreaks of hand, foot, and mouth disease have been reported in the Asia Pacific region over the last few years and resulted in significant fatalities. The 2 main etiologic agents are Enterovirus 71 (EV71) and Coxsackievirus A16 (CA16). Both viruses are closely related genetically and show similar clinical symptoms. However, EV71 are associated with neurologic complications and can lead to fatalities. In this study, we developed a multiplex real-time hybridization probe reverse transcriptase polymerase chain reaction to detect and differentiate EV71 from CA16 using the LightCycler (Roche Molecular Biochemicals). Specific primers and hybridization probes were designed based on highly conserved VP1 region of EV71 or CA16. Our results showed high specificity and sensitivities in detecting EV71 or CA16 from 67 clinical specimens, and no other enterovirus serotype was detected. Rapid diagnosis to differentiate EV71 from CA16 in outbreak situations will enable pediatricians to identify and manage the patients more effectively.

[Indexed for MEDLINE]

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