Molecular epidemiology of infectious bursal disease virus in the Near East and Persian Gulf regions
Avian Pathol. 2023 Oct 12:1-30. doi: 10.1080/03079457.2023.2270531. Online ahead of print.ABSTRACTAbstractInfectious bursal disease virus (IBDV) is a ubiquitous immunosuppressive pathogen causing severe burden to the poultry industry. Due to frequent mutation and reassortment events, its double-stranded, bi-segmented RNA genome displays a considerable heterogeneity, which in turn produces profound differences in antigenicity and pathogenicity. In recent years, the investigation of IBDV epidemiology has greatly benefited from the proposal of multiple phylogenetic classification systems which prompted the execution of molecu...
Source: Avian Pathology - October 12, 2023 Category: Pathology Authors: Matteo Legnardi Francesca Poletto Safaa Alam Abdallah Cherfane Bertrand Le-Tallec Giovanni Franzo Claudia Maria Tucciarone Caterina Lupini Daniela Pasotto Mattia Cecchinato Source Type: research

Molecular epidemiology of infectious bursal disease virus in the Near East and Persian Gulf regions
Avian Pathol. 2023 Oct 12:1-30. doi: 10.1080/03079457.2023.2270531. Online ahead of print.ABSTRACTAbstractInfectious bursal disease virus (IBDV) is a ubiquitous immunosuppressive pathogen causing severe burden to the poultry industry. Due to frequent mutation and reassortment events, its double-stranded, bi-segmented RNA genome displays a considerable heterogeneity, which in turn produces profound differences in antigenicity and pathogenicity. In recent years, the investigation of IBDV epidemiology has greatly benefited from the proposal of multiple phylogenetic classification systems which prompted the execution of molecu...
Source: Avian Pathology - October 12, 2023 Category: Pathology Authors: Matteo Legnardi Francesca Poletto Safaa Alam Abdallah Cherfane Bertrand Le-Tallec Giovanni Franzo Claudia Maria Tucciarone Caterina Lupini Daniela Pasotto Mattia Cecchinato Source Type: research

Molecular epidemiology of infectious bursal disease virus in the Near East and Persian Gulf regions
Avian Pathol. 2023 Oct 12:1-30. doi: 10.1080/03079457.2023.2270531. Online ahead of print.ABSTRACTAbstractInfectious bursal disease virus (IBDV) is a ubiquitous immunosuppressive pathogen causing severe burden to the poultry industry. Due to frequent mutation and reassortment events, its double-stranded, bi-segmented RNA genome displays a considerable heterogeneity, which in turn produces profound differences in antigenicity and pathogenicity. In recent years, the investigation of IBDV epidemiology has greatly benefited from the proposal of multiple phylogenetic classification systems which prompted the execution of molecu...
Source: Avian Pathology - October 12, 2023 Category: Pathology Authors: Matteo Legnardi Francesca Poletto Safaa Alam Abdallah Cherfane Bertrand Le-Tallec Giovanni Franzo Claudia Maria Tucciarone Caterina Lupini Daniela Pasotto Mattia Cecchinato Source Type: research

Molecular epidemiology of infectious bursal disease virus in the Near East and Persian Gulf regions
Avian Pathol. 2023 Oct 12:1-30. doi: 10.1080/03079457.2023.2270531. Online ahead of print.ABSTRACTAbstractInfectious bursal disease virus (IBDV) is a ubiquitous immunosuppressive pathogen causing severe burden to the poultry industry. Due to frequent mutation and reassortment events, its double-stranded, bi-segmented RNA genome displays a considerable heterogeneity, which in turn produces profound differences in antigenicity and pathogenicity. In recent years, the investigation of IBDV epidemiology has greatly benefited from the proposal of multiple phylogenetic classification systems which prompted the execution of molecu...
Source: Avian Pathology - October 12, 2023 Category: Pathology Authors: Matteo Legnardi Francesca Poletto Safaa Alam Abdallah Cherfane Bertrand Le-Tallec Giovanni Franzo Claudia Maria Tucciarone Caterina Lupini Daniela Pasotto Mattia Cecchinato Source Type: research

Molecular epidemiology of infectious bursal disease virus in the Near East and Persian Gulf regions
Avian Pathol. 2023 Oct 12:1-30. doi: 10.1080/03079457.2023.2270531. Online ahead of print.ABSTRACTAbstractInfectious bursal disease virus (IBDV) is a ubiquitous immunosuppressive pathogen causing severe burden to the poultry industry. Due to frequent mutation and reassortment events, its double-stranded, bi-segmented RNA genome displays a considerable heterogeneity, which in turn produces profound differences in antigenicity and pathogenicity. In recent years, the investigation of IBDV epidemiology has greatly benefited from the proposal of multiple phylogenetic classification systems which prompted the execution of molecu...
Source: Avian Pathology - October 12, 2023 Category: Pathology Authors: Matteo Legnardi Francesca Poletto Safaa Alam Abdallah Cherfane Bertrand Le-Tallec Giovanni Franzo Claudia Maria Tucciarone Caterina Lupini Daniela Pasotto Mattia Cecchinato Source Type: research

Avian Diseases 67.2 Table of Contents
Avian Pathol. 2023 Dec;52(6):447. doi: 10.1080/03079457.2023.2267285. Epub 2023 Oct 11.NO ABSTRACTPMID:37818867 | DOI:10.1080/03079457.2023.2267285 (Source: Avian Pathology)
Source: Avian Pathology - October 11, 2023 Category: Pathology Source Type: research

International Meetings, Wvpa Matters and Announcements
Avian Pathol. 2023 Dec;52(6):446. doi: 10.1080/03079457.2023.2267276. Epub 2023 Oct 11.NO ABSTRACTPMID:37818866 | DOI:10.1080/03079457.2023.2267276 (Source: Avian Pathology)
Source: Avian Pathology - October 11, 2023 Category: Pathology Source Type: research

Avian Diseases 67.2 Table of Contents
Avian Pathol. 2023 Dec;52(6):447. doi: 10.1080/03079457.2023.2267285. Epub 2023 Oct 11.NO ABSTRACTPMID:37818867 | DOI:10.1080/03079457.2023.2267285 (Source: Avian Pathology)
Source: Avian Pathology - October 11, 2023 Category: Pathology Source Type: research

A < em > Salmonella < /em > Pullorum outbreak with neurological signs in adult layers and outbreak investigation using Whole Genome Sequencing
This report describes a Salmonella enterica subspecies enterica serovar Gallinarum biovar Pullorum (SP) outbreak in a Dutch laying flock of 65 weeks of age (W) showing increased mortality, decreased egg production and neurological signs. The flock was vaccinated three times with a live S. Enteritis and S. Typhimurium vaccine in the rearing period. At 71 W, as mortality peaked, a live SG 9R vaccine was applied. At 76 W mortality decreased and egg production stabilized but did not return to a normal level.Post-mortem, histological, bacteriological and serological examinations were frequently performed. Gross findings in dise...
Source: Avian Pathology - October 6, 2023 Category: Pathology Authors: Robert Jan Molenaar Remco Dijkman Christiaan Ter Veen Annet Heuvelink Fiona van Kaam Marieke Augustijn Anneke Feberwee Source Type: research

A < em > Salmonella < /em > Pullorum outbreak with neurological signs in adult layers and outbreak investigation using Whole Genome Sequencing
This report describes a Salmonella enterica subspecies enterica serovar Gallinarum biovar Pullorum (SP) outbreak in a Dutch laying flock of 65 weeks of age (W) showing increased mortality, decreased egg production and neurological signs. The flock was vaccinated three times with a live S. Enteritis and S. Typhimurium vaccine in the rearing period. At 71 W, as mortality peaked, a live SG 9R vaccine was applied. At 76 W mortality decreased and egg production stabilized but did not return to a normal level.Post-mortem, histological, bacteriological and serological examinations were frequently performed. Gross findings in dise...
Source: Avian Pathology - October 6, 2023 Category: Pathology Authors: Robert Jan Molenaar Remco Dijkman Christiaan Ter Veen Annet Heuvelink Fiona van Kaam Marieke Augustijn Anneke Feberwee Source Type: research

A < em > Salmonella < /em > Pullorum outbreak with neurological signs in adult layers and outbreak investigation using Whole Genome Sequencing
This report describes a Salmonella enterica subspecies enterica serovar Gallinarum biovar Pullorum (SP) outbreak in a Dutch laying flock of 65 weeks of age (W) showing increased mortality, decreased egg production and neurological signs. The flock was vaccinated three times with a live S. Enteritis and S. Typhimurium vaccine in the rearing period. At 71 W, as mortality peaked, a live SG 9R vaccine was applied. At 76 W mortality decreased and egg production stabilized but did not return to a normal level.Post-mortem, histological, bacteriological and serological examinations were frequently performed. Gross findings in dise...
Source: Avian Pathology - October 6, 2023 Category: Pathology Authors: Robert Jan Molenaar Remco Dijkman Christiaan Ter Veen Annet Heuvelink Fiona van Kaam Marieke Augustijn Anneke Feberwee Source Type: research

A < em > Salmonella < /em > Pullorum outbreak with neurological signs in adult layers and outbreak investigation using Whole Genome Sequencing
This report describes a Salmonella enterica subspecies enterica serovar Gallinarum biovar Pullorum (SP) outbreak in a Dutch laying flock of 65 weeks of age (W) showing increased mortality, decreased egg production and neurological signs. The flock was vaccinated three times with a live S. Enteritis and S. Typhimurium vaccine in the rearing period. At 71 W, as mortality peaked, a live SG 9R vaccine was applied. At 76 W mortality decreased and egg production stabilized but did not return to a normal level.Post-mortem, histological, bacteriological and serological examinations were frequently performed. Gross findings in dise...
Source: Avian Pathology - October 6, 2023 Category: Pathology Authors: Robert Jan Molenaar Remco Dijkman Christiaan Ter Veen Annet Heuvelink Fiona van Kaam Marieke Augustijn Anneke Feberwee Source Type: research

Molecular assay for detecting MS-H vaccine strain and Immune response mechanisms in chickens receiving one or two doses of live MS-H vaccine
This study aimed to verify the PCR-RFLP molecular assay as a convenient technique for detecting the MS-H vaccine strain and to characterize the immune response mechanisms in experimental layer-type chickens receiving three different vaccination programs; a single dose at either 9 or 12 weeks of age or two doses at both 9 and 12 weeks of age. The PCR-RFLP assay, using restriction enzyme TasI to digest vlhA gene-targeted PCR amplicons, was performed to evaluate vaccine administration by detecting the MS-H vaccine strain in vaccinated chickens and differentiating it from non-vaccine strains as WVU1853 reference strain and Tha...
Source: Avian Pathology - October 4, 2023 Category: Pathology Authors: Kriengwich Limpavithayakul Nataya Charoenvisal Somsak Pakpinyo Source Type: research

Molecular assay for detecting MS-H vaccine strain and Immune response mechanisms in chickens receiving one or two doses of live MS-H vaccine
This study aimed to verify the PCR-RFLP molecular assay as a convenient technique for detecting the MS-H vaccine strain and to characterize the immune response mechanisms in experimental layer-type chickens receiving three different vaccination programs; a single dose at either 9 or 12 weeks of age or two doses at both 9 and 12 weeks of age. The PCR-RFLP assay, using restriction enzyme TasI to digest vlhA gene-targeted PCR amplicons, was performed to evaluate vaccine administration by detecting the MS-H vaccine strain in vaccinated chickens and differentiating it from non-vaccine strains as WVU1853 reference strain and Tha...
Source: Avian Pathology - October 4, 2023 Category: Pathology Authors: Kriengwich Limpavithayakul Nataya Charoenvisal Somsak Pakpinyo Source Type: research

Molecular assay for detecting MS-H vaccine strain and Immune response mechanisms in chickens receiving one or two doses of live MS-H vaccine
This study aimed to verify the PCR-RFLP molecular assay as a convenient technique for detecting the MS-H vaccine strain and to characterize the immune response mechanisms in experimental layer-type chickens receiving three different vaccination programs; a single dose at either 9 or 12 weeks of age or two doses at both 9 and 12 weeks of age. The PCR-RFLP assay, using restriction enzyme TasI to digest vlhA gene-targeted PCR amplicons, was performed to evaluate vaccine administration by detecting the MS-H vaccine strain in vaccinated chickens and differentiating it from non-vaccine strains as WVU1853 reference strain and Tha...
Source: Avian Pathology - October 4, 2023 Category: Pathology Authors: Kriengwich Limpavithayakul Nataya Charoenvisal Somsak Pakpinyo Source Type: research