ETIDIOH - NEW

  On 30th July 2025 HPAI H5N1 was confirmed in a young chicken in a backyard flock in Co Donegal . The bird was submitted to the Regional Veterinary Laboratory and virological testing confirmed HPAI at the CVRL. Control measures were put in place following detection on 30th July 2025. The 7 remaining birds of the backyard flock were euthanised and have tested negative for AI PCR. Further results to follow. Update: report updated to reflect the control measures applied (stamping out applied) as per the above report. Source: WOAH,  https://wahis.woah.org/#/in-review/6691 ____

{Scotland, Aberdeenshire} Commercial layer flock with approx. 88,000 laying hens. Increased mortality and other clinical signs reported. Samples taken were found positive for HPAI H5N1. Source: WOAH,  https://wahis.woah.org/#/in-review/6695 ____

Abstract Background :  The Liao ning virus (LNV), belonging to the genus Seadornavirus within the family Sedoreoviridae , is a mosquito-borne virus . It was originally isolated from Aedes dorsalis mosquitoes in China . The original LNV strain, LNVS-NE97-31, was reported to infect several mammalian cell lines and cause hemorrhagic symptoms in mice . Subsequently, another LNV strain, LNV NSW B115745, was isolated from Australian mosquitoes ; it was reported to exhibit insect-specific infection. Materials and Methods :  Virus isolation was performed on mosquitoes collected in northern Hokkaido, Japan, in 2022 . The isolated virus was subjected to genomic and growth kinetics analyses. Results :  A LNV strain was isolated from Aedes vexans mosquitoes . Genomic sequencing and phylogenetic analysis revealed the new strain as 22WN03, and it formed a robust clade with the original Chinese strain, LNVS-NE97-31. Growth kinetics analysis did not reveal any mammalian or avian cell lin...