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Published in: Virology Journal 1/2014

Open Access 01-12-2014 | Research

Identification and characterization of unrecognized viruses in stool samples of non-polio acute flaccid paralysis children by simplified VIDISCA

Authors: Shahzad Shaukat, Mehar Angez, Muhammad Masroor Alam, Maarten F Jebbink, Martin Deijs, Marta Canuti, Salmaan Sharif, Michel de Vries, Adnan Khurshid, Tariq Mahmood, Lia van der Hoek, SyedSohail Zahoor Zaidi

Published in: Virology Journal | Issue 1/2014

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Abstract

Background

The use of sequence independent methods combined with next generation sequencing for identification purposes in clinical samples appears promising and exciting results have been achieved to understand unexplained infections. One sequence independent method, Virus Discovery based on cDNA Amplified Fragment Length Polymorphism (VIDISCA) is capable of identifying viruses that would have remained unidentified in standard diagnostics or cell cultures.

Methods

VIDISCA is normally combined with next generation sequencing, however, we set up a simplified VIDISCA which can be used in case next generation sequencing is not possible. Stool samples of 10 patients with unexplained acute flaccid paralysis showing cytopathic effect in rhabdomyosarcoma cells and/or mouse cells were used to test the efficiency of this method. To further characterize the viruses, VIDISCA-positive samples were amplified and sequenced with gene specific primers.

Results

Simplified VIDISCA detected seven viruses (70%) and the proportion of eukaryotic viral sequences from each sample ranged from 8.3 to 45.8%. Human enterovirus EV-B97, EV-B100, echovirus-9 and echovirus-21, human parechovirus type-3, human astrovirus probably a type-3/5 recombinant, and tetnovirus-1 were identified. Phylogenetic analysis based on the VP1 region demonstrated that the human enteroviruses are more divergent isolates circulating in the community.

Conclusion

Our data support that a simplified VIDISCA protocol can efficiently identify unrecognized viruses grown in cell culture with low cost, limited time without need of advanced technical expertise. Also complex data interpretation is avoided thus the method can be used as a powerful diagnostic tool in limited resources. Redesigning the routine diagnostics might lead to additional detection of previously undiagnosed viruses in clinical samples of patients.
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Metadata
Title
Identification and characterization of unrecognized viruses in stool samples of non-polio acute flaccid paralysis children by simplified VIDISCA
Authors
Shahzad Shaukat
Mehar Angez
Muhammad Masroor Alam
Maarten F Jebbink
Martin Deijs
Marta Canuti
Salmaan Sharif
Michel de Vries
Adnan Khurshid
Tariq Mahmood
Lia van der Hoek
SyedSohail Zahoor Zaidi
Publication date
01-12-2014
Publisher
BioMed Central
Published in
Virology Journal / Issue 1/2014
Electronic ISSN: 1743-422X
DOI
https://doi.org/10.1186/1743-422X-11-146

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Live: Thursday 27th June 2024, 18:00-19:30 (CEST)

WHO estimates that half of all patients worldwide are non-adherent to their prescribed medication. The consequences of poor adherence can be catastrophic, on both the individual and population level.

Join our expert panel to discover why you need to understand the drivers of non-adherence in your patients, and how you can optimize medication adherence in your clinics to drastically improve patient outcomes.

Prof. Kevin Dolgin
Prof. Florian Limbourg
Prof. Anoop Chauhan
Developed by: Springer Medicine
Obesity Clinical Trial Summary

At a glance: The STEP trials

A round-up of the STEP phase 3 clinical trials evaluating semaglutide for weight loss in people with overweight or obesity.

Developed by: Springer Medicine