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1.

001-es BibID:BIBFORM117940
035-os BibID:(cikkazonosító)175 (WoS)001139768900001 (Scopus)85181965425
Első szerző:Bálint Ádám
Cím:Spatiotemporal Distribution of PRRSV-1 Clades in Hungary with a Focus on the Era of Disease Eradication / Ádám Bálint, Szilvia Jakab, Eszter Kaszab, Szilvia Marton, Krisztián Bányai, Sándor Kecskeméti, István Szabó
Dátum:2024
ISSN:2076-2615
Megjegyzések:Porcine reproductive and respiratory syndrome (PRRS) is the cause of the most severe economic losses in the pig industry worldwide. PRRSV is extremely diverse in Europe, which poses a significant challenge to disease control within a country or any region. With the combination of phylogenetic reconstruction and network analysis, we aimed to uncover the major routes of the dispersal of PRRSV clades within Hungary. In brief, by analyzing >2600 ORF5 sequences, we identified at least 12 clades (including 6 clades within lineage 1 and 3 clades within lineage 3) common in parts of Western Europe (including Denmark, Germany and the Netherlands) and identified 2 novel clades (designated X1 and X2). Of interest, some genetic clades unique to other central European countries, such as the Czech Republic and Poland, were not identified. The pattern of PRRSV clade distribution is consistent with the route of the pig trade among countries, showing that most of the identified clades were introduced from Western Europe when fatteners were transported to Hungary. As a result of rigorous implementation of the national eradication program, the swine population was declared officially free from PRRSV. This map of viral diversity and clade distribution will serve as valuable baseline information for the maintenance of PRRSV-free status in the post-eradication era.
Tárgyszavak:Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
disease eradication
genetic diversity
molecular epidemiology
phylogeny
porcine reproductive and respiratory syndrome
PRRS
Megjelenés:Animals. - 14 : 1 (2024), p. 1-8. -
További szerzők:Jakab Szilvia Kaszab Eszter (1989-) (biológus) Marton Szilvia Bányai Krisztián Kecskeméti Sándor Szabó István
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2.

001-es BibID:BIBFORM118511
035-os BibID:(WoS)001028622300001 (Scopus)85165039685 (cikkazonosító)2137
Első szerző:Gál Bence
Cím:Marked Genotype Diversity among Reoviruses Isolated from Chicken in Selected East-Central European Countries / Bence Gál, Renáta Varga-Kugler, Katalin Ihász, Eszter Kaszab, Marianna Domán, Szilvia Farkas, Krisztián Bányai
Dátum:2023
ISSN:2076-2615
Megjegyzések:The concern that the vaccines currently used against Avian orthoreovirus (ARV) infections are less efficient in the field justifies the need for the close monitoring of circulating ARV strains. In this study, we collected necropsy samples from various chicken breeds and tested for ARV by virus isolation, RT-PCR assay and sequence analysis. ARVs were isolated from birds showing runting-stunting syndrome, uneven growth, lameness or increased mortality, with relative detection rates of 38%, 35%, 6% and 25%, respectively. Partial ?C gene sequences were determined for nearly 90% of ARV isolates. The isolates could be classified into one of the major genetic clusters. Interestingly, cluster 2 and cluster 5 were isolated from vaccinated broiler breeders, while clusters 1 to 4 were isolated from unvaccinated broilers. The isolates shared less than 75% amino acid identities with the vaccine strains (range, 44.3?74.6%). This study reaffirms the global distribution of the major genetic clusters of ARVs in chicken. The diversity of ARV strains isolated from unvaccinated broilers was greater than those detected from vaccinated animals, however, the relative importance of passive and active immunity on the selection of novel strains in different chicken breeds needs to be better understood.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Animals. - 13 : 13 (2023), p. 1-13. -
További szerzők:Varga-Kugler Renáta Ihász Katalin Kaszab Eszter (1989-) (biológus) Domán Marianna (1987-) (biológus) Farkas Szilvia Bányai Krisztián
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3.

001-es BibID:BIBFORM117251
035-os BibID:(Scopus)85178361033 (cikkazonosító)3504 (WoS)001122834800001
Első szerző:Gál Bence
Cím:A Snapshot on the Genomic Epidemiology of Turkey Reovirus Infections, Hungary / Bence Gál, Renáta Varga-Kugler, Katalin Ihász, Eszter Kaszab, Szilvia Farkas, Szilvia Marton, Vito Martella, Krisztián Bányai
Dátum:2023
ISSN:2076-2615
Megjegyzések:Reovirus infections in turkeys are associated with arthritis and lameness. Viral genome sequence data are scarce, which makes an accurate description of the viral evolution and epidemiology difficult. In this study, we isolated and characterized turkey reoviruses from Hungary. The isolates were identified in 2016; these isolates were compared with earlier Hungarian turkey reovirus strains and turkey reoviruses isolated in the 2010s in the United States. Gene-wise sequence and phylogenetic analyses identified the cell-receptor binding protein and the main neutralization antigen, ?C, to be the most conserved. The most genetically diverse gene was another surface antigen coding gene, ?B. This gene was shown to undergo frequent reassortment among chicken and turkey origin reoviruses. Additional reassortment events were found primarily within members of the homologous turkey reovirus clade. Our data showed evidence for low variability among strains isolated from independent outbreaks, a finding that suggests a common source of turkey reoviruses in Hungarian turkey flocks. Given that commercial vaccines are not available, identification of the source of these founder virus strains would permit a more efficient prevention of disease outbreaks before young birds are settled to fattening facilities.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Avian orthoreovirus
interspecies transmission
phylogenetic analysis
reassortment
Spinareoviridae
whole-genome sequencing
Megjelenés:Animals. - 13 : 22 (2023), p. 1-12. -
További szerzők:Varga-Kugler Renáta Ihász Katalin Kaszab Eszter (1989-) (biológus) Farkas Szilvia Marton Szilvia Martella, Vito Bányai Krisztián
Pályázati támogatás:RRF-2.3.1-21-2022-00001
Egyéb
TKP2021-EGA-01
Egyéb
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4.

001-es BibID:BIBFORM118512
035-os BibID:(WoS)001075847600001 (Scopus)85172808154 (cikkazonosító)2819
Első szerző:Jakab Szilvia
Cím:Genomic Epidemiology and Evolution of Fowl Adenovirus 1 / Szilvia Jakab, Krisztina Bali, Zalán Homonnay, Eszter Kaszab, Katalin Ihász, Enikő Fehér, Tamás Mató, István Kiss, Vilmos Palya, Krisztián Bányai
Dátum:2023
ISSN:2076-2615
Megjegyzések:Fowl adenovirus 1 (FAdV-1) is the main cause of gizzard erosion in chickens. Whole genome sequencing and sequence analyses of 32 FAdV-1 strains from a global collection provided evidence that multiple recombination events have occurred along the entire genome. In gene-wise phylogenies, only the adenoviral pol gene formed a tree topology that corresponded to whole genome-based phylogeny. Virus genetic features that were clearly connected to gizzard erosion were not identified in our analyses. However, some genome variants tended to be more frequently identified from birds with gizzard erosion and strains isolated from healthy birds or birds with non-specific pathologies tended to form common clusters in multiple gene phylogenies. Our data show that the genetic diversity is greater, and the evolutionary mechanisms are more complex within FAdV-1 than previously thought. The implications of these findings for viral pathogenesis and epidemiology await further investigation.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Animals. - 13 : 18 (2023), p. 1-9. -
További szerzők:Bali Krisztina Homonnay Zalán G. Kaszab Eszter (1989-) (biológus) Ihász Katalin Fehér Enikő (1981-) (molekuláris biológus, mikrobiológus) Mató Tamás Kiss István Palya Vilmos Bányai Krisztián
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5.

001-es BibID:BIBFORM118358
035-os BibID:(Scopus)85183167838
Első szerző:Kaszab Eszter (biológus)
Cím:Metagenomic Identification of Novel Eukaryotic Viruses with Small DNA Genomes in Pheasants / Eszter Kaszab, Krisztina Bali, Szilvia Marton, Krisztina Ursu, Szilvia L. Farkas, Enikő Fehér, Marianna Domán, Vito Martella, Krisztián Bányai
Dátum:2024
ISSN:2076-2615
Megjegyzések:A panel of intestinal samples collected from common pheasants (Phasianus colchicus) between 2008 and 2017 was used for metagenomic investigation using an unbiased enrichment protocol and different bioinformatic pipelines. The number of sequence reads in the metagenomic analysis ranged from 1,419,265 to 17,507,704 with a viral sequence read rate ranging from 0.01% to 59%. When considering the sequence reads of eukaryotic viruses, RNA and DNA viruses were identified in the samples, including but not limited to coronaviruses, reoviruses, parvoviruses, and CRESS DNA viruses (i.e., circular Rep-encoding single-stranded DNA viruses). Partial or nearly complete genome sequences were reconstructed of at least three different parvoviruses (dependoparvovirus, aveparvovirus and chaphamaparvovirus), as well as gyroviruses and diverse CRESS DNA viruses. Generating information of virus diversity will serve as a basis for developing specific diagnostic tools and for structured epidemiological investigations, useful to assess the impact of these novel viruses on animal health. ? 2024 by the authors.
Tárgyszavak:Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
genome assembly
phylogenetic analysis
virome
Megjelenés:Animals. - 14 : 2 (2024), p. 237, p. 1-13. -
További szerzők:Bali Krisztina Marton Szilvia Ursu Krisztina Farkas Szilvia L. Fehér Enikő (1981-) (molekuláris biológus, mikrobiológus) Domán Marianna (1987-) (biológus) Martella, Vito Bányai Krisztián
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