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Development and Evaluation of a Reverse Transcription-Loop-Mediated Isothermal Amplification Assay for Rapid Detection of Enterovirus 71▿

By Tao Jiang, Juan Liu, Yong-Qiang Deng, Li-Juan Xu, Xiao-Feng Li, Jian-Feng Han, Rui-Yuan Cao, E-De Qin and Cheng-Feng Qin


Human enterovirus 71 (EV71) is the major etiological agent of hand, foot, and mouth disease (HFMD), which is a common infectious disease in young children and infants. EV71 can cause various clinical manifestations and has been associated with severe neurological complications; it has resulted in fatalities during recent outbreaks in Asian-Pacific regions since 1997. The early and rapid detection is critical for prevention and control of EV71 infection, since no vaccine or antiviral drugs are currently available. In this study, a simple and sensitive reverse transcription-loop-mediated isothermal amplification (RT-LAMP) assay was developed for rapid detection of EV71. The detection limit of the RT-LAMP assay was approximately 0.01 PFU per reaction mixture, and no cross-reactive amplification with other enteroviruses was observed. The assay was evaluated further with 40 clinical specimens and exhibited 92.9% sensitivity and 100% specificity. This RT-LAMP assay may become a useful alternative in clinical diagnosis of EV71, especially in resource-limited hospitals or rural clinics of China and other countries in the Asian-Pacific region

Topics: Virology
Publisher: American Society for Microbiology
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Provided by: PubMed Central
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