Highly Pathogenic Avian Influenza in Northern Fulmars (Fulmarus glacialis) in the Netherlands Available to Purchase

We report highly pathogenic avian influenza H5 virus infection in 10 Northern Fulmars (Fulmarus glacialis) found dead throughout January and February 2024 in the Netherlands. Five birds were infected with the H5N5 subtype, notable for markers of adaptation to mammals. Continuous infectious disease surveillance remains important in wild birds.