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Volume 29, Number 10—October 2023
Dispatch

Limited Outbreak of Highly Pathogenic Influenza A(H5N1) in Herring Gull Colony, Canada, 2022

Liam U. TaylorComments to Author , Robert A. Ronconi, Hayley A. Spina, Megan E.B. Jones, C. Brandon Ogbunugafor, and Andrea J. Ayala
Author affiliations: Yale University, New Haven, Connecticut, USA (L.U. Taylor, C.B. Ogbunugafor, A.J. Ayala); Canadian Wildlife Service, Dartmouth, Nova Scotia, Canada (R.A. Ronconi); Environment and Climate Change Canada, Dartmouth (R.A. Ronconi); University of Guelph, Guelph, Ontario, Canada (H.A. Spina); University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada (M.E.B. Jones); Canadian Wildlife Health Cooperative, Charlottetown (M.E.B. Jones)

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Figure 2

Adult herring gull deaths (cumulative, end-of-day) on East Beach, Kent Island, New Brunswick, Canada, in study of limited outbreak of highly pathogenic influenza A(H5N1) in herring gull colony, 2022. A) Cumulative mortality of herring gulls on East Beach during summer 2022. B) Census counts (number of breeding and nonbreeding adult herring gulls) from 1–3 surveys/day on East Beach and weekly total counts from surveys of the entire island. Red dotted lines mark July 6, the date of maximum gull deaths on East Beach.

Figure 2. Adult herring gull deaths (cumulative, end-of-day) on East Beach, Kent Island, New Brunswick, Canada, in study of limited outbreak of highly pathogenic influenza A(H5N1) in herring gull colony, 2022. A) Cumulative mortality of herring gulls on East Beach during summer 2022. B) Census counts (number of breeding and nonbreeding adult herring gulls) from 1–3 surveys/day on East Beach and weekly total counts from surveys of the entire island. Red dotted lines mark July 6, the date of maximum gull deaths on East Beach.

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Page created: August 03, 2023
Page updated: September 20, 2023
Page reviewed: September 20, 2023
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