Cargando…

Efficient and Informative Laboratory Testing for Rapid Confirmation of H5N1 (Clade 2.3.4.4) High-Pathogenicity Avian Influenza Outbreaks in the United Kingdom

During the early stages of the UK 2021-2022 H5N1 high-pathogenicity avian influenza virus (HPAIV) epizootic in commercial poultry, 12 infected premises (IPs) were confirmed by four real-time reverse-transcription–polymerase chain reaction (RRT)-PCRs, which identified the viral subtype and pathotype....

Descripción completa

Detalles Bibliográficos
Autores principales: Slomka, Marek J., Reid, Scott M., Byrne, Alexander M. P., Coward, Vivien J., Seekings, James, Cooper, Jayne L., Peers-Dent, Jacob, Agyeman-Dua, Eric, de Silva, Dilhani, Hansen, Rowena D. E., Banyard, Ashley C., Brown, Ian H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10304448/
https://www.ncbi.nlm.nih.gov/pubmed/37376643
http://dx.doi.org/10.3390/v15061344
_version_ 1785065512995127296
author Slomka, Marek J.
Reid, Scott M.
Byrne, Alexander M. P.
Coward, Vivien J.
Seekings, James
Cooper, Jayne L.
Peers-Dent, Jacob
Agyeman-Dua, Eric
de Silva, Dilhani
Hansen, Rowena D. E.
Banyard, Ashley C.
Brown, Ian H.
author_facet Slomka, Marek J.
Reid, Scott M.
Byrne, Alexander M. P.
Coward, Vivien J.
Seekings, James
Cooper, Jayne L.
Peers-Dent, Jacob
Agyeman-Dua, Eric
de Silva, Dilhani
Hansen, Rowena D. E.
Banyard, Ashley C.
Brown, Ian H.
author_sort Slomka, Marek J.
collection PubMed
description During the early stages of the UK 2021-2022 H5N1 high-pathogenicity avian influenza virus (HPAIV) epizootic in commercial poultry, 12 infected premises (IPs) were confirmed by four real-time reverse-transcription–polymerase chain reaction (RRT)-PCRs, which identified the viral subtype and pathotype. An assessment was undertaken to evaluate whether a large sample throughput would challenge laboratory capacity during an exceptionally large epizootic; hence, assay performance across our test portfolio was investigated. Statistical analysis of RRT-PCR swab testing supported it to be focused on a three-test approach, featuring the matrix (M)-gene, H5 HPAIV-specific (H5-HP) and N1 RRT-PCRs, which was successfully assessed at 29 subsequent commercial IPs. The absence of nucleotide mismatches in the primer/probe binding regions for the M-gene and limited mismatches for the H5-HP RRT-PCR underlined their high sensitivity. Although less sensitive, the N1 RRT-PCR remained effective at flock level. The analyses also guided successful surveillance testing of apparently healthy commercial ducks from at-risk premises, with pools of five oropharyngeal swabs tested by the H5-HP RRT-PCR to exclude evidence of infection. Serological testing at anseriform H5N1 HPAIV outbreaks, together with quantitative comparisons of oropharyngeal and cloacal shedding, provided epidemiological information concerning the chronology of initial H5N1 HPAIV incursion and onward spread within an IP.
format Online
Article
Text
id pubmed-10304448
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-103044482023-06-29 Efficient and Informative Laboratory Testing for Rapid Confirmation of H5N1 (Clade 2.3.4.4) High-Pathogenicity Avian Influenza Outbreaks in the United Kingdom Slomka, Marek J. Reid, Scott M. Byrne, Alexander M. P. Coward, Vivien J. Seekings, James Cooper, Jayne L. Peers-Dent, Jacob Agyeman-Dua, Eric de Silva, Dilhani Hansen, Rowena D. E. Banyard, Ashley C. Brown, Ian H. Viruses Article During the early stages of the UK 2021-2022 H5N1 high-pathogenicity avian influenza virus (HPAIV) epizootic in commercial poultry, 12 infected premises (IPs) were confirmed by four real-time reverse-transcription–polymerase chain reaction (RRT)-PCRs, which identified the viral subtype and pathotype. An assessment was undertaken to evaluate whether a large sample throughput would challenge laboratory capacity during an exceptionally large epizootic; hence, assay performance across our test portfolio was investigated. Statistical analysis of RRT-PCR swab testing supported it to be focused on a three-test approach, featuring the matrix (M)-gene, H5 HPAIV-specific (H5-HP) and N1 RRT-PCRs, which was successfully assessed at 29 subsequent commercial IPs. The absence of nucleotide mismatches in the primer/probe binding regions for the M-gene and limited mismatches for the H5-HP RRT-PCR underlined their high sensitivity. Although less sensitive, the N1 RRT-PCR remained effective at flock level. The analyses also guided successful surveillance testing of apparently healthy commercial ducks from at-risk premises, with pools of five oropharyngeal swabs tested by the H5-HP RRT-PCR to exclude evidence of infection. Serological testing at anseriform H5N1 HPAIV outbreaks, together with quantitative comparisons of oropharyngeal and cloacal shedding, provided epidemiological information concerning the chronology of initial H5N1 HPAIV incursion and onward spread within an IP. MDPI 2023-06-09 /pmc/articles/PMC10304448/ /pubmed/37376643 http://dx.doi.org/10.3390/v15061344 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Slomka, Marek J.
Reid, Scott M.
Byrne, Alexander M. P.
Coward, Vivien J.
Seekings, James
Cooper, Jayne L.
Peers-Dent, Jacob
Agyeman-Dua, Eric
de Silva, Dilhani
Hansen, Rowena D. E.
Banyard, Ashley C.
Brown, Ian H.
Efficient and Informative Laboratory Testing for Rapid Confirmation of H5N1 (Clade 2.3.4.4) High-Pathogenicity Avian Influenza Outbreaks in the United Kingdom
title Efficient and Informative Laboratory Testing for Rapid Confirmation of H5N1 (Clade 2.3.4.4) High-Pathogenicity Avian Influenza Outbreaks in the United Kingdom
title_full Efficient and Informative Laboratory Testing for Rapid Confirmation of H5N1 (Clade 2.3.4.4) High-Pathogenicity Avian Influenza Outbreaks in the United Kingdom
title_fullStr Efficient and Informative Laboratory Testing for Rapid Confirmation of H5N1 (Clade 2.3.4.4) High-Pathogenicity Avian Influenza Outbreaks in the United Kingdom
title_full_unstemmed Efficient and Informative Laboratory Testing for Rapid Confirmation of H5N1 (Clade 2.3.4.4) High-Pathogenicity Avian Influenza Outbreaks in the United Kingdom
title_short Efficient and Informative Laboratory Testing for Rapid Confirmation of H5N1 (Clade 2.3.4.4) High-Pathogenicity Avian Influenza Outbreaks in the United Kingdom
title_sort efficient and informative laboratory testing for rapid confirmation of h5n1 (clade 2.3.4.4) high-pathogenicity avian influenza outbreaks in the united kingdom
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10304448/
https://www.ncbi.nlm.nih.gov/pubmed/37376643
http://dx.doi.org/10.3390/v15061344
work_keys_str_mv AT slomkamarekj efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom
AT reidscottm efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom
AT byrnealexandermp efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom
AT cowardvivienj efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom
AT seekingsjames efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom
AT cooperjaynel efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom
AT peersdentjacob efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom
AT agyemanduaeric efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom
AT desilvadilhani efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom
AT hansenrowenade efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom
AT banyardashleyc efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom
AT brownianh efficientandinformativelaboratorytestingforrapidconfirmationofh5n1clade2344highpathogenicityavianinfluenzaoutbreaksintheunitedkingdom