Results 31 to 40 of about 2,876 (202)

Molecular Epidemiology and Evolutionary Analysis of Avian Influenza A(H5) Viruses Circulating in Egypt, 2019–2021

Viruses, 2022
The highly pathogenic avian influenza (HPAI) H5N8 virus was first detected in Egypt in late 2016. Since then, the virus has spread rapidly among different poultry sectors, becoming the dominant HPAI H5 subtype reported in Egypt.
Naglaa M. Hagag, Nahed Yehia, Mohamed H. El-Husseiny, Amany Adel, Azhar G. Shalaby, Neveen Rabie, Mohamed Samy, Motaz Mohamed, Amal S. A. El-Oksh, Abdullah Selim, Abdel-Satar Arafa, Samah Eid, Momtaz A. Shahein, Mahmoud M. Naguib   +13 more
doaj   +1 more source

The C-terminus of non-structural protein 1 (NS1) in H5N8 clade 2.3.4.4 avian influenza virus affects virus fitness in human cells and virulence in mice

Emerging Microbes and Infections, 2021
Avian influenza viruses (AIV) H5N8 clade 2.3.4.4 pose a public health threat but the viral factors relevant for its potential adaptation to mammals are largely unknown.
Claudia Blaurock, Ulrike Blohm, Christine Luttermann, Julia Holzerland, David Scheibner, Alexander Schäfer, Allison Groseth, Thomas C. Mettenleiter, Elsayed M. Abdelwhab   +8 more
doaj   +1 more source

Genotype Uniformity, Wild Bird-to-Poultry Transmissions, and Farm-to-Farm Carryover during the Spread of the Highly Pathogenic Avian Influenza H5N8 in the Czech Republic in 2021

Viruses, 2022
In 2020–2021, the second massive dissemination of a highly pathogenic avian influenza of the H5Nx subtype occurred in Europe. During this period, the virus caused numerous outbreaks in poultry, including in the Czech Republic.
Alexander Nagy, Lenka Černíková, Martina Stará, Lada Hofmannová, Kamil Sedlák   +4 more
doaj   +1 more source

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.
Dalby, Andrew R., Tinworth, Lorna, Iqbal, Munir   +2 more
openaire   +1 more source

Pathogenicity and pathogenesis of a recent highly pathogenic avian influenza subtype H5N8 in mule ducklings in Egypt

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
openaire   +3 more sources

Spatio-temporal patterns of highly pathogenic avian influenza virus subtype H5N8 spread, France, 2016 to 2017 [PDF]

Eurosurveillance, 2018
Introduction France is one of Europe’s foremost poultry producers and the world’s fifth largest producer of poultry meat. In November 2016, highly pathogenic avian influenza (HPAI) virus subtype H5N8 emerged in poultry in the country.
Guinat, Claire, Nicolas, Gaelle, Vergne, Timothée, Bronner, Anne, Durand, Benoit, Courcoul, Aurélie, Gilbert, Marius, Guerin, Jean-Luc, Paul, Mathilde   +8 more
openaire   +8 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 T. AbdElSalam, Rabeh El-Shesheny, Ghazi Kayali, Mohamed A. Ali   +10 more
openaire   +3 more sources

Genetic Characterization of H5N8 Highly Pathogenic Avian Influenza Viruses Isolated from Falcated Ducks and Environmental Water in Japan in November 2020

Pathogens, 2021
We isolated two highly pathogenic avian influenza viruses (HPAIVs) of subtype H5N8 clade 2.3.4.4b from falcated duck (Anas falcata) feces and environmental water collected at an overwintering site in Japan.
Ahmed Magdy Khalil, Yoshikazu Fujimoto, Isshu Kojima, Mana Esaki, Kyonha Ri, Tatsunori Masatani, Tsutomu Matsui, Makoto Ozawa   +7 more
doaj   +1 more source

Urgent request on avian influenza [PDF]

, 2017
HPAI H5N8 is currently causing an epizootic in Europe, infecting many poultry holdings as well as captive and wild bird species in more than ten countries.
,, A, Breed,, A, Brouwer,, A, Calistri,, A, Stegeman,, A, Velarde,, Abrahantes, J, Cortinas, B, Garin-Bastuji,, Butterworth, Andrew, Bøtner, A, C, Adlhoch,, D, Bicout,, F, Baldinelli,, F, Verdonck,, H H, Thulke,, H, Roberts,, H, Spoolder,, I, Monne,, J, Morgano,, K, Depner,, L, Sihvonen,, M A, Miranda,, M, Good,, M, Guillemain,, Nielsen, S, Saxmose, O, Mosbach-Schulz,, P, Willeberg,, Raj, Mohan, S, Edwards,, S, More,, Schmidt, C, Gortazar, T, Harder,, V, Michel,, Winckler, C   +33 more
core   +2 more sources

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, Rene Heutink, Frank Harders, Marit Roose, Sylvia B.E. Pritz-Verschuren, Evelien A. Germeraad, Marc Engelsma   +6 more
openaire   +1 more source