Genetic Characterization of a Neurovirulent West Nile Virus Variant Associated with a Fatal Great Grey Owl Infection
This study reports on a fatal case of a captive great grey owl infected with the West Nile virus (WNV) in the zoological garden Košice, eastern Slovakia (Central Europe). The tissue samples of the dead owl were used for virus isolation and genetic characterization. The novel isolate is genetically c...
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ftmdpi:oai:mdpi.com:/1999-4915/13/4/699/ 2023-08-20T04:06:45+02:00 Genetic Characterization of a Neurovirulent West Nile Virus Variant Associated with a Fatal Great Grey Owl Infection Katarína Peňazziová Ľuboš Korytár Patrik Pastorek Juraj Pistl Diana Rusňáková Tomáš Szemes Viktória Čabanová Martina Ličková Kristína Boršová Boris Klempa Tomáš Csank agris 2021-04-17 application/pdf https://doi.org/10.3390/v13040699 EN eng Multidisciplinary Digital Publishing Institute Animal Viruses https://dx.doi.org/10.3390/v13040699 https://creativecommons.org/licenses/by/4.0/ Viruses; Volume 13; Issue 4; Pages: 699 West Nile virus great grey owl virulence determinant zoological garden zoonosis Text 2021 ftmdpi https://doi.org/10.3390/v13040699 2023-08-01T01:31:33Z This study reports on a fatal case of a captive great grey owl infected with the West Nile virus (WNV) in the zoological garden Košice, eastern Slovakia (Central Europe). The tissue samples of the dead owl were used for virus isolation and genetic characterization. The novel isolate is genetically closer to Hungarian, Greek, and Bulgarian strains from the central/southern European clade of lineage 2 than to the strains previously isolated in Slovakia. Interestingly, it carries NS3-249P, a molecular virulence determinant associated with higher neurovirulence, which has not previously been observed in Slovakia. Subsequent serological investigation of the captive owls revealed additional seropositive animals, indicating local WNV transmission. Although no WNV-positive mosquitoes were found, the presence of the WNV principal vector Culex pipiens complex together with the described fatal case and further serological findings indicate an endemic focus of bird-neurovirulent WNV variant in the area. Text great grey owl MDPI Open Access Publishing Viruses 13 4 699 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
West Nile virus great grey owl virulence determinant zoological garden zoonosis |
spellingShingle |
West Nile virus great grey owl virulence determinant zoological garden zoonosis Katarína Peňazziová Ľuboš Korytár Patrik Pastorek Juraj Pistl Diana Rusňáková Tomáš Szemes Viktória Čabanová Martina Ličková Kristína Boršová Boris Klempa Tomáš Csank Genetic Characterization of a Neurovirulent West Nile Virus Variant Associated with a Fatal Great Grey Owl Infection |
topic_facet |
West Nile virus great grey owl virulence determinant zoological garden zoonosis |
description |
This study reports on a fatal case of a captive great grey owl infected with the West Nile virus (WNV) in the zoological garden Košice, eastern Slovakia (Central Europe). The tissue samples of the dead owl were used for virus isolation and genetic characterization. The novel isolate is genetically closer to Hungarian, Greek, and Bulgarian strains from the central/southern European clade of lineage 2 than to the strains previously isolated in Slovakia. Interestingly, it carries NS3-249P, a molecular virulence determinant associated with higher neurovirulence, which has not previously been observed in Slovakia. Subsequent serological investigation of the captive owls revealed additional seropositive animals, indicating local WNV transmission. Although no WNV-positive mosquitoes were found, the presence of the WNV principal vector Culex pipiens complex together with the described fatal case and further serological findings indicate an endemic focus of bird-neurovirulent WNV variant in the area. |
format |
Text |
author |
Katarína Peňazziová Ľuboš Korytár Patrik Pastorek Juraj Pistl Diana Rusňáková Tomáš Szemes Viktória Čabanová Martina Ličková Kristína Boršová Boris Klempa Tomáš Csank |
author_facet |
Katarína Peňazziová Ľuboš Korytár Patrik Pastorek Juraj Pistl Diana Rusňáková Tomáš Szemes Viktória Čabanová Martina Ličková Kristína Boršová Boris Klempa Tomáš Csank |
author_sort |
Katarína Peňazziová |
title |
Genetic Characterization of a Neurovirulent West Nile Virus Variant Associated with a Fatal Great Grey Owl Infection |
title_short |
Genetic Characterization of a Neurovirulent West Nile Virus Variant Associated with a Fatal Great Grey Owl Infection |
title_full |
Genetic Characterization of a Neurovirulent West Nile Virus Variant Associated with a Fatal Great Grey Owl Infection |
title_fullStr |
Genetic Characterization of a Neurovirulent West Nile Virus Variant Associated with a Fatal Great Grey Owl Infection |
title_full_unstemmed |
Genetic Characterization of a Neurovirulent West Nile Virus Variant Associated with a Fatal Great Grey Owl Infection |
title_sort |
genetic characterization of a neurovirulent west nile virus variant associated with a fatal great grey owl infection |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/v13040699 |
op_coverage |
agris |
genre |
great grey owl |
genre_facet |
great grey owl |
op_source |
Viruses; Volume 13; Issue 4; Pages: 699 |
op_relation |
Animal Viruses https://dx.doi.org/10.3390/v13040699 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/v13040699 |
container_title |
Viruses |
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13 |
container_issue |
4 |
container_start_page |
699 |
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1774718055280017408 |