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Characterising the molecular epidemiology of human parechovirus in young infants in the UK and Canada

Kadambari, Seilesh; Harvala, Heli; Nguyen, Dung; Sadarangani, Manish; Martin, Natalie; Al-Rawahi, Ghada N; Sekirov, Inna; ... Simmonds, Peter; + view all (2024) Characterising the molecular epidemiology of human parechovirus in young infants in the UK and Canada. Journal of Clinical Virology , 174 , Article 105715. 10.1016/j.jcv.2024.105715. Green open access

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Abstract

OBJECTIVES: We evaluated the extent of virus heterogeneity in PeV infected infants in the UK, Canada and Australia. METHODS: Samples were collected from PeV infected infants during 2013–16. Next generation sequencing was used to obtain sequencing data and construct phylogenetic trees based on analysis of the VP1 region. Comparison was made with sequencing data available from an outbreak in Australia. RESULTS: We amplified and sequenced 58 samples. All obtained PeV sequences were genotype 3 apart from one UK sample which was PeV-A5. Phylogenetic analysis revealed that all strains clustered together on the same clade and showed no significant genetic variation. We saw no significant evidence of association between sequence and either clinical severity (defined by admission to paediatric intensive care), geographical origin (compared between Canada and U.K) or year of sample collection (samples sequenced during 2013 – 2018). CONCLUSIONS: In this small cohort, sequencing data indicate that PeV circulating in the UK and Canada from 2013 to 18 are derived from a common ancestor. No association between disease severity and genetic sequence was seen in the UK or Canadian cohorts. Larger studies are required to support these findings.

Type: Article
Title: Characterising the molecular epidemiology of human parechovirus in young infants in the UK and Canada
Location: Netherlands
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.jcv.2024.105715
Publisher version: https://doi.org/10.1016/j.jcv.2024.105715
Language: English
Additional information: © 2024 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords: Human parechovirus, Infant, Next generation sequencing, Surveillance
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Infection, Immunity and Inflammation Dept
URI: https://discovery.ucl.ac.uk/id/eprint/10197898
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