Selected article for: "assay amplification and dengue virus"
Author: Dauner, Allison L.; Mitra, Indrani; Gilliland, Theron; Seales, Sajeewane; Pal, Subhamoy; Yang, Shih-Chun; Guevara, Carolina; Chen, Jiann-Hwa; Liu, Yung-Chuan; Kochel, Tadeusz J.; Wu, Shuenn-Jue L.
Title: Development of a pan-serotype reverse transcription loop-mediated isothermal amplification assay for the detection of dengue virus
  • Cord-id: vfznyyz6
  • Document date: 2015_5_15
    • ID: vfznyyz6
    Snippet: During dengue outbreaks, acute diagnosis at the patient's point of need followed by appropriate supportive therapy reduces morbidity and mortality. To facilitate needed diagnosis, we developed and optimized a reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay that detects all 4 serotypes of dengue virus (DENV). We used a quencher to reduce nonspecific amplification. The assay does not require expensive thermocyclers, utilizing a simple water bath to maintain the reactio
    Document: During dengue outbreaks, acute diagnosis at the patient's point of need followed by appropriate supportive therapy reduces morbidity and mortality. To facilitate needed diagnosis, we developed and optimized a reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay that detects all 4 serotypes of dengue virus (DENV). We used a quencher to reduce nonspecific amplification. The assay does not require expensive thermocyclers, utilizing a simple water bath to maintain the reaction at 63 °C. Results can be visualized using UV fluorescence, handheld readers, or lateral flow immunochromatographic tests. We report a sensitivity of 86.3% (95% confidence interval [CI], 72.7–94.8%) and specificity of 93.0% (95% CI, 83.0–98.1%) using a panel of clinical specimens characterized by DENV quantitative reverse transcription–polymerase chain reaction. This pan-serotype DENV RT-LAMP can be adapted to field-expedient formats where it can provide actionable diagnosis near the patient's point of need.

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