Results 91 to 100 of about 2,355 (182)

Route of Inoculation Determines Symptom Profile and Replication Dynamics After low Pathogenic Avian Influenza A(H7N9) Virus Infection in Ferrets

Influenza and Other Respiratory Viruses, Volume 19, Issue 11, November 2025.
ABSTRACT Background Although influenza A viruses (IAVs) are respiratory pathogens, infections may occur via nonrespiratory routes. However, the effects of different routes of exposure on the course of infection and disease are not well characterized.
Sook‐San Wong, Mark Zanin, Min‐Suk Song, Cristina Contreras, Thomas P. Fabrizio, Eun‐Kyo Hong, Hye Kwon Kim, Woonsung Na, Richard J. Webby, Sun‐Woo Yoon   +9 more
wiley   +1 more source

Emergence of a novel reassortant highly pathogenic avian influenza clade 2.3.4.4b A(H5N2) Virus, 2024

Emerging Microbes and Infections
Reassortant highly pathogenic avian influenza A(H5N2) clade 2.3.4.4.b viruses were detected from ducks and environmental samples in Egypt, June 2024. Genomic and phylogenetic analyses revealed a novel genotype produced by the reassortment of an A(H5N1 ...
Rabeh El-Shesheny, Mokhtar Gomaa, Mohamed El Sayes, Mina Nabil Kamel, Ahmed El Taweel, Omnia Kutkat, Mohamed GabAllah, Amany Elkhrsawy, Hager Emam, Yassmin Moatasim, Ahmed Kandeil, Pamela P. McKenzie, Richard J. Webby, Mohamed Ahmed Ali, Ghazi Kayali   +14 more
doaj   +1 more source

A Rapid Review Contrasting the Evidence on Avian Influenza A(H5Nx) Clades 2.3.4.4b and 2.3.2.1c in Humans

Zoonoses and Public Health, Volume 72, Issue 7, Page 553-586, November 2025.
ABSTRACT Avian influenza viruses (AIV) circulate in wild and domestic bird populations, posing an on‐going risk for zoonotic transmission and virus adaptation to mammals and humans. The A(H5Nx) clades 2.3.2.1c and 2.3.4.4b currently circulating have caused sporadic infections in humans.
Tricia Corrin, Kaitlin M. Young, Mavra Qamar, Kusala Pussegoda, Austyn Baumeister, Nicole Atchessi, Erin Leonard, Lisa A. Waddell   +7 more
wiley   +1 more source

Avian influenza overview June–September 2025

EFSA Journal, Volume 23, Issue 10, October 2025.
Abstract Between 7 June and 5 September 2025, 183 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (27) and wild (156) birds across 15 countries in Europe. Although HPAI A(H5N1) virus detections were predominant in western and southwestern Europe, they also occurred on the northernmost coast of Norway. More than
European Food Safety Authority, European Centre for Disease Prevention and Control, European Union Reference Laboratory for Avian Influenza, Leonidas Alexakis, Hubert Buczkowski, Mariette Ducatez, Alice Fusaro, Jose L. Gonzales, Thijs Kuiken, Gražina Mirinavičiūtė, Karl Ståhl, Christoph Staubach, Olov Svartström, Calogero Terregino, Katriina Willgert, Miguel Melo, Lisa Kohnle   +16 more
wiley   +1 more source

Genesis of Influenza A(H5N8) Viruses

Emerging Infectious Diseases, 2017
Highly pathogenic avian influenza A(H5N8) clade 2.3.4.4 virus emerged in 2016 and spread to Russia, Europe, and Africa. Our analysis of viruses from domestic ducks at Tanguar haor, Bangladesh, showed genetic similarities with other viruses from wild ...
Rabeh El-Shesheny, Subrata Barman, Mohammed M. Feeroz, M. Kamrul Hasan, Lisa Jones-Engel, John Franks, Jasmine Turner, Patrick Seiler, David Walker, Kimberly Friedman, Lisa Kercher, Sajeda Begum, Sharmin Akhtar, Ashis Kumar Datta, Scott Krauss, Ghazi Kayali, Pamela McKenzie, Richard Webby, Robert G. Webster   +18 more
doaj   +1 more source

Increased Mortality Rates Caused by Highly Pathogenic Avian Influenza Virus in a Migratory Raptor

Ecology and Evolution, Volume 15, Issue 7, July 2025.
We utilized movement data to identify a continental‐scale mortality event caused by highly pathogenic avian influenza virus (HPAIV) in a single species of migratory bird, the rough‐legged hawk (Buteo lagopus). We estimated an HPAIV cause‐specific annual mortality rate of 28% that substantially elevated the overall annual mortality rate (47%) above ...
Neil Paprocki, Jeff Kidd, Courtney J. Conway   +2 more
wiley   +1 more source

Bivalent Hemagglutinin Cleavage-Site Peptide Vaccines Protect Chickens from Lethal Infections with Highly Pathogenic H5N1 and H5N6 Avian Influenza Viruses

Frontiers in Bioscience-Landmark
Background: Outbreaks of highly pathogenic avian influenza viruses cause huge economic losses to the poultry industry worldwide. Vaccines that can protect chickens from infections caused by various variants of highly pathogenic H5Nx avian influenza ...
Dibakar Chowdhury, Xiao Han Lin, Sang Heui Seo   +2 more
doaj   +1 more source

Avian influenza overview March–June 2025

EFSA Journal, Volume 23, Issue 7, July 2025.
Abstract Between 8 March and 6 June 2025, 365 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (167) and wild (198) birds across 24 countries in Europe. HPAI A(H5N1) virus detections were predominant and mainly located in western, central and south‐eastern Europe.
European Food Safety Authority, European Centre for Disease Prevention and Control, European Union Reference Laboratory for Avian Influenza, Leonidas Alexakis, Hubert Buczkowski, Mariette Ducatez, Alice Fusaro, Jose L. Gonzales, Thijs Kuiken, Gražina Mirinavičiūtė, Karl Ståhl, Christoph Staubach, Olov Svartström, Calogero Terregino, Katriina Willgert, Miguel Melo, Lisa Kohnle   +16 more
wiley   +1 more source

Highly Pathogenic Avian Influenza Viruses and Generation of Novel Reassortants, United States, 2014–2015 [PDF]

, 2016
Asian highly pathogenic avian influenza A(H5N8) viruses spread into North America in 2014 during autumn bird migration. Complete genome sequencing and phylogenetic analysis of 32 H5 viruses identified novel H5N1, H5N2, and H5N8 viruses that emerged in ...
Bahl, Justin, Deliberto, Thomas J., Ip, Hon S., Killian, Mary Lea, Lee, Dong-Hun, Swayne, David E., Torchetti, Mia Kim   +6 more
core   +4 more sources

Nova presloženica virusa A(H5N5) filogenetske grane 2.3.4.4. u divljih ptica i peradi, Hrvatska, 2016-2017 [PDF]

, 2017
Highly pathogenic avian influenza (HPAI) causes flock mortality as high as 100% in susceptible poultry species but it also poses a threat for humans, particularly viruses of A/goose/Guangdong/96-like (GD/96) lineage.
Vladimir Savić
core   +2 more sources