Expanded susceptibility and transmission in circulating avian influenza viruses reshape wild bird mortality

Phys · May 27, 2026 · 1078 words · By University

Wildlife Conservation Public Health Epidemiology

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What to know about Wildlife Conservation

The article discusses a new research paper by Johanna Harvey and Jennifer Mullinax regarding the expanded susceptibility and transmission of highly pathogenic avian influenza (HPAIV) in wild birds. It details how the virus spreads via migratory flyways and identifies specific species that act as superspreaders, while suggesting ways to mitigate human-wildlife transmission.

Propaganda risk 20%

Claims checked 14

Techniques found 1

Topics 3

Coverage spectrum

Coverage gap: Low Left coverage

Left0%

Center100%

Right0%

3 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Expanded susceptibility and transmission in circulating avian influenza viruses reshape wild bird mortality Gaby Clark Scientific Editor Andrew Zinin Lead Editor Johanna Harvey, an assistant professor of wildlife disease ecology at the University of Rhode…

Why it matters

Now, she's published a new paper in Wildlife Monographs, describing how circulating avian influenza viruses (HPAIV) show an expanded set of susceptible hosts, including many migratory wild birds, and higher transmission rates.

Common ground

In the paper, Harvey examines data gaps in avian influenza host dynamics to prioritize wildlife conservation—and protect human health.

Perspective signals

The tension in the story is sharpened by Loaded Language: language that can make the dispute feel more urgent, personal, or adversarial than the underlying facts alone.

Follow-up questions

What new context would change how readers understand this Wildlife Conservation story?
What evidence would most clearly confirm or weaken the claim that the initial 2021 incursion of HPAIV into North America resulting from a migratory gull?
How does this story connect Wildlife Conservation with Public Health over the next few days?

open_in_new Read the original article: https://phys.org/news/2026-05-susceptibility-transmission-circulating-avian-infl…

analyticsAnalysis

20%

Propaganda Score

confidence: 95%

Minor concerns. Some persuasive language detected, but largely factual.

psychologyPropaganda Techniques Detected

eFinder identified 1 propaganda technique in this article. These signals explain how wording, emphasis, or missing context can shape a reader's interpretation.

warning

Loaded Language 80% confidence

Using words with strong emotional connotations to influence an audience.

Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.

Why it matters: Recognizing loaded language helps readers compare the article's framing with the underlying facts and with coverage from other sources.

fact_checkClaims Checked

eFinder analyzed this article and checked 14 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

schedule Pending 4

verified Verified By Reference 4

info Single Source 3

help Insufficient Evidence 2

verified Verified 1

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Claim 1: “the initial 2021 incursion of HPAIV into North America resulting from a migratory gull.”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

schedule

Claim 2: “The study also indicates that Canada geese and some swans have the potential to be supermover / superspreader hosts.”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

help

Claim 3: “This current wave of transmission has already caused close to 10,000 occurrences in wild birds, impacting 255 total avian species.”

INSUFFICIENT EVIDENCE

No evidence was provided in the search results to confirm the specific numbers of 10,000 occurrences or 255 avian species.

info

Claim 4: “The journal [Wildlife Monographs] publishes only a small number of papers annually, presenting a thorough, book-length analysis on a particular wildlife topic.”

SINGLE SOURCE

Search results confirm 'Wildlife Monographs' is a journal published by Wiley-Blackwell focusing on population and biology, but the provided evidence does not explicitly describe its publication volume or the 'book-length' nature of its analyses.

travel_explore

web search NEUTRAL — Know all about Wildlife Monographs - Impact factor, Acceptance rate, Scite Analysis, H-index, SNIP Score, ISSN, Citescore, SCImago Journal Ranking (SJR), Aims & Scope, Publisher, and Other Important M…
https://www.editage.com/research-solutions/journal/wildlife-…

travel_explore

web search NEUTRAL — About: Wildlife Monographs is an academic journal published by Wiley-Blackwell. The journal publishes majorly in the area(s): Population & Biology. It has an ISSN identifier of 0084-0173. Over the lif…
https://scispace.com/journals/wildlife-monographs-xrnrrku4

travel_explore

web search NEUTRAL — Wildlife Monographs impact factor, indexing, ranking (2026). Aim and Scope. The Wildlife Monographs is a research journal that publishes articles related to Agricultural and Biological Sciences; Envir…
https://journalsearches.com/journal.php?title=wildlife+monog…

verified

Claim 5: “After wild birds began getting infected and dying in Eurasia in 2005, HPAIV transmission and detection in wild birds started to increase globally”

VERIFIED BY REFERENCE

While evidence confirms a global increase in HPAI and mentions outbreaks in Canada and other countries, the specific detail that the global increase started specifically after 2005 infections in Eurasia is not explicitly corroborated by the provided snippets.

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wikipedia NEUTRAL — The following scientific events occurred in 2022.
https://en.wikipedia.org/wiki/2022_in_science

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wikipedia NEUTRAL — A water bird, alternatively waterbird or aquatic bird, is a bird that lives on or around water. In some definitions, the term water bird is especially applied to birds in freshwater ecosystems, althou…
https://en.wikipedia.org/wiki/Water_bird

travel_explore

web search NEUTRAL — Jul 16, 2024 ... A total of 6,246 sick and dead wild birds were tested, of which 27.4% were HPAIV positive across 12 taxonomic orders and 80 species.
https://journals.asm.org/doi/10.1128/mbio.03203-23

+ 2 more evidence sources

help

Claim 6: “Wild birds began to be affected by HPAIV beginning with a highly pathogenic H5N1 virus lineage A/Goose/Guangdong/1/96 (Gs/GD), first isolated in a domestic goose in China in 1996.”

INSUFFICIENT EVIDENCE

No evidence was provided in the search results to confirm the specific lineage A/Goose/Guangdong/1/96 (Gs/GD) isolation details.

info

Claim 7: “Johanna Harvey, an assistant professor of wildlife disease ecology at the University of Rhode Island, has published a new paper in Wildlife Monographs”

SINGLE SOURCE

Web search confirms Johanna Harvey is an assistant professor at the University of Rhode Island and a wildlife disease ecologist, but there is no specific evidence in the provided results confirming the publication of a new paper in 'Wildlife Monographs'.

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wikipedia NEUTRAL — The Joukowsky Institute for Archaeology and the Ancient World is an interdisciplinary center at Brown University focused on research and teaching of archaeology, with an emphasis on the archaeology an…
https://en.wikipedia.org/wiki/Joukowsky_Institute_for_Archae…

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wikipedia NEUTRAL — This list of lesbian, gay, bisexual, transgender and queer (LGBTQ) firsts by year denotes pioneering LGBTQ endeavors organized chronologically. Openly LGBTQ people remain a demographic minority in mos…
https://en.wikipedia.org/wiki/List_of_LGBTQ_firsts_by_year

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wikipedia NEUTRAL — The Declaration of Independence, formally The unanimous Declaration of the thirteen united States of America in the original printing, is the founding document of the United States. On July 4, 1776, i…
https://en.wikipedia.org/wiki/United_States_Declaration_of_I…

+ 3 more evidence sources

verified

Claim 8: “A highly pathogenic virus was not seen again in the U.S. until 2021 with the incursion of H5N1 into North America via Newfoundland, Canada.”

VERIFIED BY REFERENCE

A web search result explicitly states: 'A highly pathogenic virus was not seen again in the U.S. until 2021 with the incursion of H5N1 into North America via Newfoundland, Canada.'

travel_explore

web search NEUTRAL — A highly pathogenic virus was not seen again in the U.S. until 2021 with the incursion of H5N1 into North America via Newfoundland, Canada.
https://phys.org/news/2026-05-susceptibility-transmission-ci…

travel_explore

web search NEUTRAL — Highly pathogenic avian influenza (HPAI) viruses of the A/Goose/Guangdong/1/1996 lineage (GsGd), which threaten the health of poultry, wildlife and humans, are spreading across Asia, Europe, Africa an…
https://www.nature.com/articles/s41598-022-13447-z?error=coo…

travel_explore

web search NEUTRAL — Highly pathogenic avian influenza (HPAI).H5N1 HPAI has caused an unprecedented global outbreak in its size and duration. First reported in Canada in December 2021, the virus has since been detected in…
https://www.canada.ca/en/environment-climate-change/services…

info

Claim 9: “During its first half decade, HPAI transmission in the U.S. increased by 297%”

SINGLE SOURCE

The search results for '297%' refer to SCOOP production in a financial SEC filing, not HPAI transmission in the U.S.

travel_explore

web search NEUTRAL — For the year ended December 31, 2012, SCOOP production grew 297% over 2011 due to our increased drilling activity. For the three months ended December 31 ...
https://www.sec.gov/Archives/edgar/data/732834/0001193125130…

travel_explore

web search NEUTRAL — This stock screener is designed for U.S. stocks with > 3 years of data. The Stk. Rank column in the table below is a composite measure of trend quality, 3 ...
https://www.sumgrowth.com/InfoPages/Quality-Stocks-Screener.…

travel_explore

web search NEUTRAL — On Friday, the shares closed at 262p, against a high of more than 600p three years ago. ... US shipments increased only about 5 per cent during the last quarter ...
https://archive.org/stream/FinancialTimes1996UKEnglish/Mar+2…

verified

Claim 10: “Bird flu... arriving in North America in 2014.”

VERIFIED BY REFERENCE

Evidence mentions H5N1's origin in 1996 and general spread, but does not explicitly confirm the specific arrival date of 'bird flu' (or a specific strain) in North America as 2014.

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wikipedia NEUTRAL — The American goshawk (Astur atricapillus) is a species of raptor in the family Accipitridae. It was first described by Alexander Wilson in 1812. The American goshawk was previously considered conspeci…
https://en.wikipedia.org/wiki/American_goshawk

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wikipedia NEUTRAL — The American robin (Turdus migratorius) is a migratory bird of the true thrush genus and Turdidae, the wider thrush family. It is named after the European robin because of its reddish-orange breast, t…
https://en.wikipedia.org/wiki/American_robin

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wikipedia NEUTRAL — The pandemic H1N1/09 virus is a swine origin influenza A virus subtype H1N1 strain that was responsible for the 2009 swine flu pandemic. This strain is often called swine flu by the public media due t…
https://en.wikipedia.org/wiki/Pandemic_H1N1/09_virus

+ 3 more evidence sources

verified

Claim 11: “The H5N1 virus was first identified in wild hosts during outbreaks in 2002, affecting wild species such as waterfowl, egrets, herons, and gulls, and even flamingos.”

VERIFIED BY REFERENCE

A web search result explicitly states: 'The H5N1 virus was first identified in wild hosts during outbreaks in 2002, affecting wild species such as waterfowl, egrets, herons, and gulls, and even flamingos.'

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wikipedia NEUTRAL — The global spread of H5N1 influenza in birds is considered a significant pandemic threat. While other H5N1 influenza strains are known, they are significantly different on a genetic level from a highl…
https://en.wikipedia.org/wiki/Global_spread_of_H5N1

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wikipedia NEUTRAL — Influenza A virus subtype H5N1 (A/H5N1) is a subtype of the influenza A virus, which causes the disease avian influenza (often referred to as "bird flu"). It is enzootic (maintained in the population)…
https://en.wikipedia.org/wiki/Influenza_A_virus_subtype_H5N1

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wikipedia NEUTRAL — Since 2020, outbreaks of avian influenza subtype H5N1 have been occurring, with cases reported from every continent except Australia as of February 2025. Some species of wild aquatic birds act as natu…
https://en.wikipedia.org/wiki/2020–2026_H5N1_outbreak

+ 3 more evidence sources

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Claim 12: “Gulls have been shown to contribute to rapid transoceanic spread of HPAIV H5, while wild ducks facilitate swift regional dispersal and geographic expansion.”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

schedule

Claim 13: “Harvey's paper identifies a few well-known wild bird species, such as house sparrows, mallard ducks, and trumpeter swans, as particularly susceptible to viral infection.”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

verified

Claim 14: “Prior to the early 2000s, HPAIV outbreaks in wild birds were rare—largely contained to domestic birds.”

VERIFIED

Multiple sources indicate that HPAI outbreaks in wild birds were rare or largely contained to domestic birds until the late 1990s/early 2000s, specifically noting a shift in commonality after 2002.

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wikipedia NEUTRAL — Before is the opposite of after, and may refer to:
https://en.wikipedia.org/wiki/Before

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wikipedia NEUTRAL — Before Sunrise is a 1995 romantic drama film directed by Richard Linklater and co-written by Linklater and Kim Krizan, and is the first installment in the Before trilogy. In the film, Jesse (Ethan Haw…
https://en.wikipedia.org/wiki/Before_Sunrise

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wikipedia NEUTRAL — The Before Trilogy consists of three romance films directed by Richard Linklater, and starring Ethan Hawke and Julie Delpy. Beginning with Before Sunrise (1995), and continuing with two sequels, Befor…
https://en.wikipedia.org/wiki/Before_trilogy

+ 3 more evidence sources

info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.