scholarly journals Genetic Characterization of a Neurovirulent West Nile Virus Variant Associated with a Fatal Great Grey Owl Infection

Viruses ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 699
Author(s):  
Katarína Peňazziová ◽  
Ľuboš Korytár ◽  
Patrik Pastorek ◽  
Juraj Pistl ◽  
Diana Rusňáková ◽  
...  
Keyword(s):  
West Nile Virus ◽  
Genetic Characterization ◽  
Fatal Case ◽  
The Novel ◽  
West Nile ◽  
Tissue Samples ◽  
Principal Vector ◽  
Virus Variant ◽  
Lineage 2

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.

scholarly journals Genetic Characterization of West Nile Virus Lineage 2, Greece, 2010

2011 ◽  
Vol 17 (5) ◽  
pp. 920-922 ◽  
Author(s):  
Anna Papa ◽  
Tamás Bakonyi ◽  
Kyriaki Xanthopoulou ◽  
Ana Vázquez ◽  
Antonio Tenorio ◽  
...  
Keyword(s):  
West Nile Virus ◽  
Genetic Characterization ◽  
West Nile ◽  
Lineage 2

Genetic characterization of West Nile Virus strains during neuroinvasives infection outbreak in Tunisia, 2018

2020 ◽  
Author(s):  
Wasfi Fares ◽  
Mariem Gdoura ◽  
Haifa Dhrif ◽  
Henda Touzi ◽  
Nahed Hogga ◽  
...  
Keyword(s):  
West Nile Virus ◽  
Genetic Characterization ◽  
West Nile ◽  
Virus Strains

scholarly journals Recovery and Genetic Characterization of a West Nile Virus Isolate from China

2020 ◽  
Author(s):  
Yan Guo ◽  
Hongjiang Wang ◽  
Songtao Xu ◽  
Hangyu Zhou ◽  
Chao Zhou ◽  
...  
Keyword(s):  
West Nile Virus ◽  
Virus Isolate ◽  
Genetic Characterization ◽  
West Nile

scholarly journals Characterization of Three Novel Viruses from the Families Nyamiviridae, Orthomyxoviridae, and Peribunyaviridae, Isolated from Dead Birds Collected during West Nile Virus Surveillance in Harris County, Texas

Viruses ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 927 ◽  
Author(s):  
Peter J. Walker ◽  
Robert B. Tesh ◽  
Hilda Guzman ◽  
Vsevolod L. Popov ◽  
Amelia P.A. Travassos da Rosa ◽  
...  
Keyword(s):  
Public Health ◽  
West Nile Virus ◽  
Rna Viruses ◽  
The Novel ◽  
Harris County ◽  
West Nile ◽  
Virus Surveillance ◽  
Veterinary Importance ◽  
Potential Public Health

This report describes and characterizes three novel RNA viruses isolated from dead birds collected during West Nile virus surveillance in Harris County, TX, USA (the Houston metropolitan area). The novel viruses are identified as members of the families Nyamaviridae, Orthomyxoviridae, and Peribunyaviridae and have been designated as San Jacinto virus, Mason Creek virus, and Buffalo Bayou virus, respectively. Their potential public health and/or veterinary importance are still unknown.

scholarly journals Phylogenetic characterization of Central/Southern European lineage 2 West Nile virus: analysis of human outbreaks in Italy and Greece, 2013–2014

2015 ◽  
Vol 21 (12) ◽  
pp. 1122.e1-1122.e10 ◽  
Author(s):  
L. Barzon ◽  
A. Papa ◽  
E. Lavezzo ◽  
E. Franchin ◽  
M. Pacenti ◽  
...  
Keyword(s):  
West Nile Virus ◽  
West Nile ◽  
Phylogenetic Characterization ◽  
Lineage 2

scholarly journals First Autochthonous West Nile Lineage 2 and Usutu Virus Infections in Humans, July to October 2018, Czech Republic

Pathogens ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 651
Author(s):  
Hana Zelená ◽  
Jana Kleinerová ◽  
Silvie Šikutová ◽  
Petra Straková ◽  
Hana Kocourková ◽  
...  
Keyword(s):  
Czech Republic ◽  
West Nile Virus ◽  
Fatal Case ◽  
First Record ◽  
Virus Infections ◽  
West Nile ◽  
Laboratory Findings ◽  
The Czech Republic ◽  
Usutu Virus ◽  
Lineage 2

We present epidemiological, clinical and laboratory findings of five Czech patients diagnosed with autochthonous mosquito-borne disease—four patients with confirmed West Nile virus (WNV) and one patient with Usutu virus (USUV) infections, from July to October 2018, including one fatal case due to WNV. This is the first documented human outbreak caused by WNV lineage 2 in the Czech Republic and the first record of a neuroinvasive human disease caused by USUV, which illustrates the simultaneous circulation of WNV and USUV in the country.

scholarly journals West Nile Virus Lineage 1 in Italy: Newly Introduced or a Re-Occurrence of a Previously Circulating Strain?

Viruses ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 64
Author(s):  
Giulia Mencattelli ◽  
Federica Iapaolo ◽  
Federica Monaco ◽  
Giovanna Fusco ◽  
Claudio de Martinis ◽  
...  
Keyword(s):  
West Nile Virus ◽  
Western Mediterranean ◽  
West Nile ◽  
Po River ◽  
Tissue Samples ◽  
Campania Region ◽  
Bayesian Phylogenetic Analysis ◽  
First Occurrence ◽  
Lineage 2 ◽  
Italian Territory

In Italy, West Nile virus (WNV) appeared for the first time in the Tuscany region in 1998. After 10 years of absence, it re-appeared in the areas surrounding the Po River delta, affecting eight provinces in three regions. Thereafter, WNV epidemics caused by genetically divergent isolates have been documented every year in the country. Since 2018, only WNV Lineage 2 has been reported in the Italian territory. In October 2020, WNV Lineage 1 (WNV-L1) re-emerged in Italy, in the Campania region. This is the first occurrence of WNV-L1 detection in the Italian territory since 2017. WNV was detected in the internal organs of a goshawk (Accipiter gentilis) and a kestrel (Falco tinnunculus). The RNA extracted in the goshawk tissue samples was sequenced, and a Bayesian phylogenetic analysis was performed by a maximum-likelihood tree. Genome analysis, conducted on the goshawk WNV complete genome sequence, indicates that the strain belongs to the WNV-L1 Western-Mediterranean (WMed) cluster. Moreover, a close phylogenetic similarity is observed between the goshawk strain, the 2008–2011 group of Italian sequences, and European strains belonging to the Wmed cluster. Our results evidence the possibility of both a new re-introduction or unnoticed silent circulation in Italy, and the strong importance of keeping the WNV surveillance system in the Italian territory active.

scholarly journals Partial Genetic Characterization of West Nile Virus Strains, New York State, 2000

2001 ◽  
Vol 7 (4) ◽  
pp. 650-653 ◽  
Author(s):  
Gregory D. Ebel ◽  
Alan P. Dupuis ◽  
Kiet Ngo ◽  
David Nicholas ◽  
Elizabeth Kauffman ◽  
...  
Keyword(s):  
New York ◽  
West Nile Virus ◽  
Genetic Characterization ◽  
New York State ◽  
West Nile ◽  
York State ◽  
Virus Strains
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