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Highly pathogenic avian influenza A(H5N1) virus infection on multiple fur farms in the South and Central Ostrobothnia regions of Finland, July 2023

2023; European Centre for Disease Prevention and Control; Volume: 28; Issue: 31 Linguagem: Inglês

10.2807/1560-7917.es.2023.28.31.2300400

1560-7917

Erika Lindh, Hanna Lounela, Niina Ikonen, Tuija Kantala, Carita Savolainen‐Kopra, Ari Kauppinen, Pamela Österlund, Lauri Kareinen, Anna B. Katz, Tiina Nokireki, Jari Jalava, Laura London, Marjaana Pitkäpaasi, Jaana Vuolle, Anna-Liisa Punto-Luoma, Riikka Kaarto, Liina Voutilainen, Riikka Holopainen, Laura Kalin-Mänttäri, Terhi Laaksonen, Hannu Kiviranta, Aino Pennanen, Otto Helve, Ilona Laamanen, Merit Melin, Niina Tammiranta, Ruska Rimhanen‐Finne, Tuija Gadd, Mika Salminen,

Animal Disease Management and Epidemiology

Since mid-July 2023, an outbreak caused by highly pathogenic avian influenza A(H5N1) virus clade 2.3.4.4b genotype BB is ongoing among farmed animals in South and Central Ostrobothnia, Finland. Infections in foxes, American minks and raccoon dogs have been confirmed on 20 farms. Genetic analysis suggests introductions from wild birds scavenging for food in farm areas. Investigations point to direct transmission between animals. While no human infections have been detected, control measures are being implemented to limit spread and human exposure.