A decade of enterovirus genetic diversity in Belgium

Copyright © 2019 Elsevier B.V. All rights reserved..

BACKGROUND: Enteroviruses are responsible for a wide range of clinical symptoms.Enterovirus D68 was already known to cause mild to severe respiratory infections, but in the last few years, it has also been associated with neurological symptoms and acute flaccid paralysis.

OBJECTIVES: In this epidemiological surveillance in Belgium, 1521 enteroviruspositive samples were genotyped.

STUDY DESIGN: Enterovirus-positive patient samples were collected from the University Hospitals Leuven and other hospitals and medical practices in Belgium from 2007 to 2018. Molecular typing was done by RT-PCR using different primers sets. EV-A and EV-B were typed by sequencing part of VP1. For EVC and EV-D, the VP4/VP2 region was used together with the non-coding region.

RESULTS: In this epidemiological survey with samples collected over 12 years, 35 different EV types were detected in 1521 patient samples. Enterovirus species B was by far the most dominant species in our samples (93%). Echovirus 30 was most frequently found (24%), followed by echovirus 6 (8%) and echovirus 9 (7%). In 2018, there was an outbreak for the first time of enterovirus D68 with severe respiratory infections but no acute flaccid paralysis. Phylogenetic analyses showed that the collected outbreak strains coexist in different clades.

CONCLUSIONS: For more than a decade, the circulating enterovirus strains were investigated in Belgium. During this time span, echovirus 30 was the most frequently detected and peaked every 3 years. Enterovirus D68 began an upsurge in 2018, but thus far without being clinically associated with acute flaccid paralysis.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:121

Enthalten in:

Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology - 121(2019) vom: 15. Dez., Seite 104205

Sprache:

Englisch

Beteiligte Personen:

Wollants, Elke [VerfasserIn]
Beller, Leen [VerfasserIn]
Beuselinck, Kurt [VerfasserIn]
Bloemen, Mandy [VerfasserIn]
Lagrou, Katrien [VerfasserIn]
Reynders, Marijke [VerfasserIn]
Van Ranst, Marc [VerfasserIn]

Links:

Volltext

Themen:

EV-D68 phylogenetic analyses
Enterovirus genotyping
Genetic diversity
Journal Article
Research Support, Non-U.S. Gov't
Viral Proteins

Anmerkungen:

Date Completed 23.07.2020

Date Revised 23.07.2020

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jcv.2019.104205

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM303257261