Results 21 to 30 of about 2,849 (192)

Genomic surveillance and evolution of co-circulating avian influenza H5N1 and H5N8 viruses in Egypt, 2022–2024 [PDF]

Emerging Microbes and Infections
For over two decades, avian influenza virus (AIV) has significantly impacted the Egyptian poultry population, with multiple subtypes and genotypes contributing to significant economic and agricultural losses.
Samah Eid, Naglaa M. Hagag, Zienab Mosaad, Neveen R. Bakry, Mohamed H. Elhusseiny, Wesam H. Mady, Ahmed Erfan, Fatma Amer, Osama Mahana, Nahed Yehia, Moataz M. Elsayed, Dalia Said, Afaf Abdelbaset, Ahlam E. Yonis, Reem M. Reda, Mohamed A. Saif, Ahmed I. Abdelmawgoud, Tamer A. El-Aried, Mahmoud Said, Abdullah Selim, Eman Farghaly, Abdelsatar Arafa, Momtaz Shahein, Mahmoud M. Naguib   +23 more
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Highly pathogenic avian influenza virus incursions of subtype H5N8, H5N5, H5N1, H5N4, and H5N3 in Germany during 2020-21 [PDF]

Virus Evolution, 2022
Abstract From October 2020 to July 2021, five different subtypes (H5N8, H5N5, H5N1, H5N4, and H5N3) and seven genotypes of highly pathogenic avian influenza viruses (HPAIV) belonging to clade 2.3.4.4b were detected in a broad array of avian hosts in Germany.
Jacqueline King, Timm Harder, Anja Globig, Lina Stacker, Anne Günther, Christian Grund, Martin Beer, Anne Pohlmann   +7 more
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Article The Genotype Diversity within the H5N8 Influenza A Subtype [PDF]

, 2018
The H5N8 influenza subtype has been involved in the global spread of the Guangdong variant of the H5 hemagglutinin. The sequence data from all of the complete genomes from the H5N8 subtype was used to analyse the genotype diversity. Clustering analysis was used to assign lineages to each of the segments where different lineages were present.
Andrew Dalby, Lorna Tinworth, Munir Iqbal   +2 more
openalex   +2 more sources

Comparative pathological findingsin mute swans (Cygnus olor) naturally infectedwith highly pathogenic Avian influenza virusesH5N1 and H5N8 in Serbia [PDF]

Veterinaria Italiana, 2019
he aim of this study was to compare pathological lesions and viral antigen expression in the organs of mute swans (Cygnus olor) naturally infected with highly pathogenic avian influenza virus subtypes H5N1 and H5N8.
Biljana Božić, Ivana Vučićević, Vladimir Polaček, Nikola Vasković, Tamaš Petrović, Marko Pajić, Sanja Aleksić - Kovačević   +6 more
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Novel incursion of a highly pathogenic avian influenza subtype H5N8 virus in the Netherlands, October 2020 [PDF]

, 2020
AbstractThe HPAI H5N8 virus detected in mute swans in the Netherlands in October 2020 shares a common ancestor with clade 2.3.4.4b viruses last detected in Egypt in 2018-2019 and has a similar genetic composition. The virus is not directly related to European H5N8 viruses detected in first half of 2020.
Nancy Beerens, René Heutink, Frank Harders, Marit Roose, Sylvia B.E. Pritz-Verschuren, Evelien A. Germeraad, M.Y. Engelsma   +6 more
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Spatiotemporal distribution of highly pathogenic avian influenza subtype H5N8 in Korea [PDF]

, 2020
In zoonotic disease, highly pathogenic avian influenza (HPAI) is a major threat to human and poultry health worldwide. In January 2014, HPAI virus subtype H5N8 first infected poultry farms in South Korea, and a total of 393 outbreaks were reported with enormous economic damage in the poultry industry. We analyzed the spatiotemporal distribution of HPAI
Woo-Hyun Kim, Sun Hak Bae, Seongbeom Cho
openalex   +2 more sources

Impact of Individual Viral Gene Segments from Influenza A/H5N8 Virus on the Protective Efficacy of Inactivated Subtype-Specific Influenza Vaccine [PDF]

Pathogens, 2021
Since its emergence in 2014, the highly pathogenic avian influenza H5N8 virus has continuously and rapidly spread worldwide in the poultry sector resulting in huge economic losses. A typical inactivated H5N8 vaccine is prepared using the six internal genes from A/PR8/1934 (H1N1) and the two major antigenic proteins (HA and NA) from the circulating H5N8
Yassmin Moatasim, Ahmed Kandeil, Ahmed Mostafa, Omnia Kutkat, Mohamed El Sayes, Ahmed N. El Taweel, Maha AlKhazindar, Elsayed M. Abdelwhab, Rabeh El‐Shesheny, Ghazi Kayali, Mohamed A. Ali   +10 more
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Genetic features of avian influenza (A/H5N8) clade 2.3.4.4b isolated from quail in Egypt [PDF]

Virus Research
Several genotypes of the highly pathogenic avian influenza (HPAI) virus H5N8 subtype within clade 2.3.4.4b continue to circulate in different species of domestic birds across Egypt. It is believed that quail contribute to virus replication and adaptation
Mohamed H. Elhusseiny, Moataz M. Elsayed, Wesam H. Mady, Osama Mahana, Neveen R. Bakry, Ola Abdelaziz, Abdel-Sattar Arafa, Momtaz A. Shahein, Samah Eid, Mahmoud M. Naguib   +9 more
doaj   +2 more sources

First isolation of influenza a subtype H5N8 in ostrich: pathological and genetic characterization

Poultry Science, 2022
The incidence of the avian influenza virus in late 2016, different genotypes of highly pathogenic avian influenza (HPAI) H5N8 clade 2.3.4.4b have been reported among different domestic and wild bird species. The virus became endemic in the poultry population, causing a considerable economic loss for the poultry industry.
Hemat S. Elsayed, Amany Adel, Dalal Sulaiman Alshaya, Fatmah Ahmed Safhi, Areej S. Jalal, Dalia Elmasry, Karim Selim, Ahmed A. Erfan, Samah Eid, Samy Selim, Mohamed T. El‐Saadony, Momtaz A. Shahein   +11 more
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Pathogenicity and pathogenesis of a recent highly pathogenic avian influenza subtype H5N8 in mule ducklings in Egypt [PDF]

Veterinary World, 2023
Background and Aim: In late 2017, an H5N8 highly pathogenic avian influenza (HPAI) virus, clade 2.3.4.4, was isolated from domestic ducks in Egypt, which was associated with high morbidity and low mortality. The pathogenicity increased due to the continuous circulation of virus in ducks.
Mahmoud M. Abotaleb, Ahlam Mourad, Esraa Fouad, Walied Abdo, Samir A. Nassif   +4 more
openalex   +4 more sources