NDLI: Development of an Internally Controlled Real-Time Reverse Transcriptase PCR Assay for Pan-Dengue Virus Detection and Comparison of Four Molecular Dengue Virus Detection Assays

Content Provider	PubMed Central
Author	Waggoner, Jesse J. Abeynayake, Janaki Sahoo, Malaya K. Gresh, Lionel Tellez, Yolanda Gonzalez, Karla Ballesteros, Gabriela Balmaseda, Angel Karunaratne, Kumudu Harris, Eva Pinsky, Benjamin A.
Copyright Year	2013
Abstract	A number of diagnostic tests are available for dengue virus (DENV) detection, including a variety of nucleic acid amplification tests (NAATs). However, reports describing a direct comparison of different NAATs have been limited. In this study, we report the design of an internally controlled real-time reverse transcriptase PCR (rRT-PCR) that detects all four DENV serotypes but does not distinguish between them (the pan-DENV assay). Two hundred clinical samples were then tested using four different DENV RT-PCR assays: the pan-DENV assay, a commercially produced, internally controlled DENV rRT-PCR (the Altona assay), a widely used heminested RT-PCR, and a serotype-specific multiplex rRT-PCR assay. The pan-DENV assay had a linear range extending from 1.0 to 7.0 log10 cDNA equivalents/μl and a lower limit of 95% detection ranging from 1.7 to 7.6 cDNA equivalents/μl, depending on the serotype. When measured against a composite reference standard, the pan-DENV assay proved to be more clinically sensitive than either the Altona or heminested assays, with a sensitivity of 98.0% compared to 72.3% and 78.8%, respectively (P ≤ 0.0001 for both comparisons). The pan-DENV assay detected DENV in significantly more samples collected on or after day 5 of illness and in a subgroup of patients with detectable anti-DENV IgM at presentation. No significant difference in sensitivity was observed between the pan-DENV assay and the multiplex rRT-PCR, despite the presence of an internal control in the former. The detection of DENV RNA late in the course of clinical illness should serve to lengthen the period during which a confirmed molecular diagnosis of DENV infection can be provided.
Related Links	http://dx.doi.org/10.1128/jcm.00548-13
Ending Page	2181
Page Count	10
Starting Page	2172
File Format	PDF
ISSN	00951137
e-ISSN	1098660X
Journal	Journal of Clinical Microbiology
Issue Number	7
Volume Number	51
Language	English
Publisher	American Society for Microbiology
Publisher Date	2013-07-01
Access Restriction	Open
Rights Holder	American Society for Microbiology
Subject Keyword	Microbiology (medical) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Microbiology (medical)

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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