Detection and Characterization of an H9N2 Influenza A Virus in the Egyptian Rousette Bat in Limpopo, South Africa

In recent years, bats have been shown to host various novel bat-specific influenza viruses, including H17N10 and H18N11 in the Americas and the H9N2 subtype from Africa. <i>Rousettus aegyptiacus</i> (Egyptian Rousette bat) is recognized as a host species for diverse viral agents. This st...

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Main Authors: Rochelle Rademan, Marike Geldenhuys, Wanda Markotter
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/15/2/498
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author Rochelle Rademan
Marike Geldenhuys
Wanda Markotter
author_facet Rochelle Rademan
Marike Geldenhuys
Wanda Markotter
author_sort Rochelle Rademan
collection DOAJ
description In recent years, bats have been shown to host various novel bat-specific influenza viruses, including H17N10 and H18N11 in the Americas and the H9N2 subtype from Africa. <i>Rousettus aegyptiacus</i> (Egyptian Rousette bat) is recognized as a host species for diverse viral agents. This study focused on the molecular surveillance of a maternal colony in Limpopo, South Africa, between 2017–2018. A pan-influenza hemi-nested RT-PCR assay targeting the PB1 gene was established, and influenza A virus RNA was identified from one fecal sample out of 860 samples. Genome segments were recovered using segment-specific amplification combined with standard Sanger sequencing and Illumina unbiased sequencing. The identified influenza A virus was closely related to the H9N2 bat-influenza virus, confirming the circulation of this subtype among Egyptian fruit bat populations in Southern Africa. This bat H9N2 subtype contained amino acid residues associated with transmission and virulence in either mammalian or avian hosts, though it will likely require additional adaptations before spillover.
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spelling doaj.art-3d49ebad7e5043cfa89981f26d6995832023-11-16T23:49:50ZengMDPI AGViruses1999-49152023-02-0115249810.3390/v15020498Detection and Characterization of an H9N2 Influenza A Virus in the Egyptian Rousette Bat in Limpopo, South AfricaRochelle Rademan0Marike Geldenhuys1Wanda Markotter2Centre for Viral Zoonoses, Department of Medical Virology, University of Pretoria, Pretoria 0001, South AfricaCentre for Viral Zoonoses, Department of Medical Virology, University of Pretoria, Pretoria 0001, South AfricaCentre for Viral Zoonoses, Department of Medical Virology, University of Pretoria, Pretoria 0001, South AfricaIn recent years, bats have been shown to host various novel bat-specific influenza viruses, including H17N10 and H18N11 in the Americas and the H9N2 subtype from Africa. <i>Rousettus aegyptiacus</i> (Egyptian Rousette bat) is recognized as a host species for diverse viral agents. This study focused on the molecular surveillance of a maternal colony in Limpopo, South Africa, between 2017–2018. A pan-influenza hemi-nested RT-PCR assay targeting the PB1 gene was established, and influenza A virus RNA was identified from one fecal sample out of 860 samples. Genome segments were recovered using segment-specific amplification combined with standard Sanger sequencing and Illumina unbiased sequencing. The identified influenza A virus was closely related to the H9N2 bat-influenza virus, confirming the circulation of this subtype among Egyptian fruit bat populations in Southern Africa. This bat H9N2 subtype contained amino acid residues associated with transmission and virulence in either mammalian or avian hosts, though it will likely require additional adaptations before spillover.https://www.mdpi.com/1999-4915/15/2/498influenza A virussurveillanceEgyptian Rousette batSouth AfricaH9N2
spellingShingle Rochelle Rademan
Marike Geldenhuys
Wanda Markotter
Detection and Characterization of an H9N2 Influenza A Virus in the Egyptian Rousette Bat in Limpopo, South Africa
Viruses
influenza A virus
surveillance
Egyptian Rousette bat
South Africa
H9N2
title Detection and Characterization of an H9N2 Influenza A Virus in the Egyptian Rousette Bat in Limpopo, South Africa
title_full Detection and Characterization of an H9N2 Influenza A Virus in the Egyptian Rousette Bat in Limpopo, South Africa
title_fullStr Detection and Characterization of an H9N2 Influenza A Virus in the Egyptian Rousette Bat in Limpopo, South Africa
title_full_unstemmed Detection and Characterization of an H9N2 Influenza A Virus in the Egyptian Rousette Bat in Limpopo, South Africa
title_short Detection and Characterization of an H9N2 Influenza A Virus in the Egyptian Rousette Bat in Limpopo, South Africa
title_sort detection and characterization of an h9n2 influenza a virus in the egyptian rousette bat in limpopo south africa
topic influenza A virus
surveillance
Egyptian Rousette bat
South Africa
H9N2
url https://www.mdpi.com/1999-4915/15/2/498
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