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Serologic evidence of exposure to highly pathogenic avian influenza H5 viruses in migratory shorebirds, Australia

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journal contribution
posted on 2024-06-18, 17:07 authored by M Wille, S Lisovski, A Risely, M Ferenczi, D Roshier, FYK Wong, AC Breed, Marcel KlaassenMarcel Klaassen, AC Hurt
Highly pathogenic avian influenza (HPAI) H5Nx viruses of the goose/Guangdong/96 lineage continue to cause outbreaks in poultry and wild birds globally. Shorebirds, known reservoirs of avian influenza viruses, migrate from Siberia to Australia along the East-Asian-Australasian Flyway. We examined whether migrating shorebirds spending nonbreeding seasons in Australia were exposed to HPAI H5 viruses. We compared those findings with those for a resident duck species. We screened >1,500 blood samples for nucleoprotein antibodies and tested positive samples for specific antibodies against 7 HPAI H5 virus antigens and 2 low pathogenicity avian influenza H5 virus antigens. We demonstrated the presence of hemagglutinin inhibitory antibodies against HPAI H5 virus clade 2.3.4.4 in the red-necked stint (Calidris ruficolis). We did not find hemagglutinin inhibitory antibodies in resident Pacific black ducks (Anas superciliosa). Our study highlights the potential role of long-distance migratory shorebirds in intercontinental spread of HPAI H5 viruses.

History

Journal

Emerging Infectious Diseases

Volume

25

Pagination

1903-1910

Location

United States

Open access

  • Yes

ISSN

1080-6040

eISSN

1080-6059

Language

English

Publication classification

C Journal article, C1 Refereed article in a scholarly journal

Copyright notice

2019, Centers for Disease Control and Prevention

Issue

10

Publisher

CENTERS DISEASE CONTROL & PREVENTION