Multiple Introductions of Reassorted Highly Pathogenic Avian Influenza H5Nx Viruses Clade 2.3.4.4b Causing Outbreaks in Wild Birds and Poultry in The Netherlands, 2020-2021

• DOI: 10.1128/spectrum.02499-21
• Publication Date: 2022-03-14T16:01:43Z
• Authors: Marc Engelsma; Rene Heutink; Frank Harders; Evelien A. Germeraad; Nancy Beerens
• Keywords: Reassortment; Highly pathogenic

Highly pathogenic avian influenza (HPAI) viruses are spread by migratory wild birds. Viruses causing outbreaks in birds and poultry the Netherlands 2020–2021 were genetically analyzed, which suggested that multiple virus incursions occurred.