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Volume 28, Number 12—December 2022
Dispatch

Mass Mortality Caused by Highly Pathogenic Influenza A(H5N1) Virus in Sandwich Terns, the Netherlands, 2022

Jolianne M. Rijks1Comments to Author , Mardik F. Leopold1, Susanne Kühn, Ronald in ‘t Veld, Fred Schenk, Allix Brenninkmeijer, Sander J. Lilipaly, Mónika Z. Ballmann, Leon Kelder, Job W. de Jong, Wouter Courtens, Roy Slaterus, Erik Kleyheeg, Sandra Vreman, Marja J.L. Kik, Andrea Gröne, Ron A.M. Fouchier, Marc Engelsma, Mart C.M. de Jong, Thijs Kuiken, and Nancy Beerens
Author affiliations: Dutch Wildlife Health Centre, Utrecht University, Utrecht, the Netherlands (J.M. Rijks, M.J.L. Kik, A. Gröne); Wageningen Marine Research, Den Helder, the Netherlands (M.F. Leopold, S. Kühn); Staatsbosbeheer Zuid-Hollandse Delta, Numansdorp, the Netherlands (R. in ’t Veld); Stichting Het Zeeuwse Landschap, Wilhelminadorp, the Netherlands (F. Schenk); Province of Groningen, Groningen, the Netherlands (A. Brenninkmeijer); Deltamilieu Projecten, Vlissingen, the Netherlands (S.J. Lilipaly, M.Z. Ballmann); Staatsbosbeheer Beheereenheid de Kop, Schoorl, the Netherlands (L. Kelder); Bureau Waardenburg, Culemborg, the Netherlands (J.W. de Jong); Research Institute for Nature and Forest, Brussels, Belgium (W. Courtens); Sovon Dutch Centre for Field Ornithology, Nijmegen, the Netherlands (E. Kleyheeg, R. Slaterus); Wageningen Bioveterinary Research, Lelystad, the Netherlands (S. Vreman, M. Engelsma,, N. Beerens); Department of Viroscience, Erasmus MC, Rotterdam, the Netherlands (R.A.M. Fouchier, T. Kuiken); Wageningen University and Research, Quantitative Veterinary Epidemiology group, Wageningen, the Netherlands (M.C.M. de Jong)

Main Article

Video 3

Webcam sequence of clips from within colony 9 (Waterdunen), June 15, 2022 (10 days after first dead birds were observed in this large colony), the Netherlands. 07:51: Many adults respond to unseen disturbance by flying off, but 1 sick bird remains, unable to fly, tries to cover its chick with its wing but starts faltering. 07:56: Other adults have returned, including presumed partner of sick bird. Chick turns to other parent and stumbles over sick bird. Partner pecks at sick bird, driving it away. Sick bird staggers away and takes cover at nearby plant. 08:07. Sick bird no longer moves. Chick and partner pass by, without further interaction, leaving bird (presumably dead) as is. In total, >900 dead Sandwich terns were removed from this colony on June 14 and 15, 2022 (Appendix 1 Table 1). Webcam credit: Bureau Waardenburg and Stichting Het Zeeuwse Landschap.

Video 3. Webcam sequence of clips from within colony 9 (Waterdunen), June 15, 2022 (10 days after first dead birds were observed in this large colony), the Netherlands. 07:51: Many adults respond to unseen disturbance by flying off, but 1 sick bird remains, unable to fly, tries to cover its chick with its wing but starts faltering. 07:56: Other adults have returned, including presumed partner of sick bird. Chick turns to other parent and stumbles over sick bird. Partner pecks at sick bird, driving it away. Sick bird staggers away and takes cover at nearby plant. 08:07. Sick bird no longer moves. Chick and partner pass by, without further interaction, leaving bird (presumably dead) as is. In total, >900 dead Sandwich terns were removed from this colony on June 14 and 15, 2022 (Appendix 1 Table 1). Webcam credit: Bureau Waardenburg and Stichting Het Zeeuwse Landschap.

Main Article

1These authors contributed equally to this article.

Page created: October 21, 2022
Page updated: November 22, 2022
Page reviewed: November 22, 2022
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