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Updated: Jan 23, 2026

Measuring Dengue Virus RNA in the Culture Supernatant of Infected Cells by Real-time Quantitative Polymerase Chain Reaction
Published on: November 1, 2018
Novel pan-serotype control RNA for dengue virus typing through real-time reverse transcription-polymerase chain
Diego A Álvarez-Díaz1, Paula A Quintero1, Dioselina Peláez-Carvajal1
1Sequencing and Genomics Unit, Virology Laboratory. Dirección de Redes en Salud Pública, Instituto Nacional de Salud, Bogotá, Colombia.
Abstract:
Dengue virus (DENV) is the causative agent of one of the most important febrile illnesses worldwide. Four DENV serotypes are responsible for a broad clinical spectrum of the disease. Positive controls are costly and required for the validation of molecular test results of DENV serotyping. In this study, we describe the in silico design of the qDENV-Control plasmid with the target sequences to oligonucleotides and probes widely used for DENV serotyping, and the subsequent production of qDENV Control RNA by T7-driven run-off in vitro transcription. The qDENV Control RNA was successfully used to validate the positive and negative DENV serotyping results, allowing its incorporation in routine in-house protocols for virologic surveillance. This Control RNA allowed the absolute quantification of viral RNA copies from unknown samples as required in several fundamental studies.
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