Marco Falchieri

Infection of ratites with clade 2.3.4.4b HPAIV H5N1: Potential implications for zoonotic risk

The paper detects H5N1 avian influenza in ratites and identifies mammalian-relevant mutations, suggesting potential zoonotic risk.

Investigating high pathogenicity avian influenza virus incursions to remote islands: Detection of H5N1 on Gough Island in the South Atlantic Ocean

Whole-genome sequencing and geolocation tracking indicate that high pathogenicity avian influenza H5N1 reached Tristan skuas on remote Gough Island via sub-Antarctic marine networks linked to South Georgia rather than Africa.

Detection of clade 2.3.4.4b H5N1 high pathogenicity avian influenza virus in a sheep in Great Britain, 2025

The paper reports the first detection of clade 2.3.4.4b H5N1 HPAIV in a sheep in Great Britain, highlighting the zoonotic potential and implications for interspecies transmission.

Asymptomatic infection and antibody prevalence to co-occurring avian influenza viruses vary substantially between sympatric seabird species following H5N1 outbreaks

The paper tests for antibodies and active infection in seabirds following H5N1 outbreaks, finding varied antibody prevalence and low asymptomatic infection rates.

Investigating the genetic diversity of H5 avian influenza in the UK 2020-2022

The paper analyzes genetic diversity of H5 avian influenza in the UK from 2020-2022, identifying reassortment events and tracking subtype shifts between H5N8 and H5N1.