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Volume 25, Number 10—October 2019

Research

Serologic Evidence of Exposure to Highly Pathogenic Avian Influenza H5 Viruses in Migratory Shorebirds, Australia

Michelle WilleComments to Author , Simeon Lisovski, Alice Risely, Marta Ferenczi, David Roshier, Frank Y.K. Wong, Andrew C. Breed, Marcel Klaassen, and Aeron C. Hurt
Author affiliations: World Health Organization Collaborating Centre for Reference and Research on Influenza, Melbourne, Victoria, Australia (M. Wille, A.C. Hurt); Deakin University, Geelong, Victoria, Australia (S. Lisovski, A. Risely, M. Ferenczi, D. Roshier, M. Klaassen); Commonwealth Scientific and Industrial Research Organisation, Australian Animal Health Laboratory, Geelong (F.Y.K. Wong); Department of Agriculture and Water Resources, Canberra, Capital Territory, Australia (A.C. Breed); University of Queensland, St. Lucia, Queensland, Australia (A.C. Breed)

Main Article

Figure 2

Avian influenza H5 virus hemagglutinin inhibition (HI) antibody patterns, Australia, 2011–2018. A) For red-necked stint, year represents the austral summer period, October–April, when this species has a migratory nonbreeding stopover in Australia. Boxes represent periods of circulation for each strain’s lineage, as determined by genomic sequences (Appendix Table 4). B) For Pacific black duck, year represents calendar year. White indicates untested serum samples; gray indicates a titer <20, th

Figure 2. Avian influenza H5 virus hemagglutinin inhibition (HI) antibody patterns, Australia, 2011–2018. A) For red-necked stint, year represents the austral summer period, October–April, when this species has a migratory nonbreeding stopover in Australia. Boxes represent periods of circulation for each strain’s lineage, as determined by genomic sequences (Appendix Table 4). B) For Pacific black duck, year represents calendar year. White indicates untested serum samples; gray indicates a titer <20, the starting titer for this assay; blue indicates hemagglutinin inhibition (HI) antibodies, and shades vary depending on HI titer (20–160). Sample numbers are ordered by collection year and sequentially from left to right in the order in which individual birds were caught. Antigens used in this study are on the y-axis, and abbreviated with relevant clade information; full strain names are available in the Table. NT, no titer. Greater detail on positive samples appears in Appendix Figure 1.

Main Article

Page created: September 17, 2019
Page updated: September 17, 2019
Page reviewed: September 17, 2019
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