Results 51 to 60 of about 13,195 (161)

Generation of Simian Rotavirus Reassortants with VP4- and VP7-Encoding Genome Segments from Human Strains Circulating in Africa Using Reverse Genetics

open access: yesViruses, 2020
Human rotavirus A (RVA) causes acute gastroenteritis in infants and young children. The broad use of two vaccines, which are based on RVA strains from Europe and North America, significantly reduced rotavirus disease burden worldwide.
Alexander Falkenhagen   +5 more
doaj   +1 more source

Detection of Two High Pathogenicity Avian Influenza Virus (HPAIV) Subtypes, H5N1 and H5N5, in a Mass Mortality Event in Wild Seabirds and Co‐Location With Dead Seals

open access: yesTransboundary and Emerging Diseases, Volume 2026, Issue 1, 2026.
H5Nx Clade 2.3.4.4b high pathogenicity avian influenza viruses (HPAIVs) have been detected repeatedly in Great Britain (GB) since autumn 2020, with H5N1 dominating detections but with low level detection of H5N5 during 2025. Globally, these viruses have caused mass mortalities in captive and wild avian and mammalian populations, including terrestrial ...
Marco Falchieri   +19 more
wiley   +1 more source

Genetic characterization of 2008 reassortant influenza A virus (H5N1), Thailand

open access: yesVirology Journal, 2010
In January and November 2008, outbreaks of avian influenza have been reported in 4 provinces of Thailand. Eight Influenza A H5N1 viruses were recovered from these 2008 AI outbreaks and comprehensively characterized and analyzed for nucleotide identity ...
Wongphatcharachai Manoosak   +13 more
doaj   +1 more source

Rapid Spread of Novel Infectious Bursal Disease Virus Variant (Genotype A2dB1b) in the Near East and Persian Gulf Regions: Molecular Surveillance and Phylodynamic Reconstruction

open access: yesTransboundary and Emerging Diseases, Volume 2026, Issue 1, 2026.
Infectious bursal disease virus (IBDV) is one of the most impactful pathogens of poultry, with disease manifestations ranging from acute forms to subclinical but immunosuppressive infections. This heterogeneity, accompanied by a significant antigenic variability, is sustained by high mutation rates and frequent reassortments between the two genome ...
Francesca Poletto   +7 more
wiley   +1 more source

Evidence of Vaccine-related Reassortment of Rotavirus, Brazil, 2008–2010

open access: yesEmerging Infectious Diseases, 2013
Analysis of 27 rotavirus strains from vaccinated and unvaccinated children revealed reassortment events in 3 strains: a gene derived from a vaccine; a gene acquired from a circulating strain; and reassortment between circulating strains.
Tatiana Lundgren Rose   +6 more
doaj   +1 more source

Dispersal Beyond Mountains and Borders: Asymmetrical Gene Flow Helps Maintain Brown Bear Metapopulation Connectivity on the Balkan Peninsula

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
We investigated the genetic structure and connectivity of the two core brown bear populations in the Balkan Peninsula. Using microsatellite and mitochondrial DNA, we found weak but clear population structure, yet also signals of functional connectivity among subpopulations preserved by asymmetrical gene flow, We discuss the implications of our findings
Charilaos Pylidis   +12 more
wiley   +1 more source

Avian influenza overview September–November 2025

open access: yesEFSA Journal, Volume 23, Issue 12, December 2025.
Abstract Between 6 September and 28 November 2025, 2896 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (442) and wild (2454) birds in 29 countries in Europe. The magnitude and geographical extent of these detections were unprecedented for this time of the year, particularly in wild birds.
European Food Safety Authority   +15 more
wiley   +1 more source

Unexpected Genetic Diversity of Two Novel Swine MRVs in Italy

open access: yesViruses, 2020
Mammalian Orthoreoviruses (MRV) are segmented dsRNA viruses in the family Reoviridae. MRVs infect mammals and cause asymptomatic respiratory, gastro-enteric and, rarely, encephalic infections.
Lara Cavicchio   +7 more
doaj   +1 more source

Determination of Hemagglutinin and Neuraminidase Genetic Variation of Human Influenza A(H1N1)pdm09 Virus Strain Isolated From Deceased Patients in Shiraz, Iran: A Cross‐Sectional Study

open access: yesHealth Science Reports, Volume 8, Issue 11, November 2025.
ABSTRACT Background and Aims A novel strain of influenza A(H1N1) was first detected in April 2009, resulting in a global pandemic. Alterations in its hemagglutinin (HA) and neuraminidase (NA) proteins can impact the virus's properties, pathogenicity, and response to treatment.
Romina Barkhori   +5 more
wiley   +1 more source

Interface between Bats and Pigs in Heavy Pig Production

open access: yesViruses, 2020
Bats are often claimed to be a major source for future viral epidemics, as they are associated with several viruses with zoonotic potential. Here we describe the presence and biodiversity of bats associated with intensive pig farms devoted to the ...
Stefania Leopardi   +8 more
doaj   +1 more source

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