The National Trust has today announced that over 7,000 seabirds have sadly died from avian influenza (bird flu) this year across its most precious sites for seabird colonies around the coast of England, Wales and Northern Ireland.

LANSING, MI While the Michigan Department of Agriculture and Rural Development (MDARD) has not reported any new cases of highly pathogenic avian influenza (HPAI) in domestic poultry flocks since March 2023, MDARD continues to receive and investigate calls regarding sick domestic birds, and the virus is still being detected across the nation. These detections coupled with the fall migration of wild birds means it is necessary to continue following precautionary measures to protect domestic flocks and keep birds healthy.

Test results confirm H5N1; officials urge beachgoers to avoid contact with wildlife.

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Since the outbreak, Wadars said its staff have been working closely with Defra and specialist contractors in order to put in place the ‘rigorous programme of cleansing and disinfection’ that is ‘necessary to eliminate this disease’.

"Due to the intricacies of the cleansing programme and the highly infectious nature of the disease, the painstaking work could take up to three months to complete at a likely cost of around £25,000,” a spokesperson for the charity said.

‘Throughout the crisis’, the wildlife helpline and mobile wildlife rescue service has continued to operate and is on track to have responded to more than 1,400 calls for help from members of the public by the end of the year.

Wadars has also continued to find forever homes for a range of companion animals, which were not affected by the outbreak.

A bird flu outbreak around Fort Flagler State Park near Port Townsend may be spreading to mammals, according to the state Department of Health.

As of last week, an outbreak of a deadly strain of the avian influenza had likely killed 1,700 gulls and Caspian terns on Rat Island – a small wildlife preserve near the state park, and its adjacent shores. The island is currently closed due to the outbreak.

The Department of Health said Friday that preliminary results show three harbor seals in the area have likely been infected with the disease, though confirmation testing is still pending.

Abstract:

Highly pathogenic avian influenza (HPAI) A/H5N1 viruses (lineage 2.3.4.4b) are rapidly invading the Americas, threatening wildlife, poultry, and potentially evolving into the next global pandemic. In November 2022 HPAI arrived in Peru, triggering massive pelican and sea lion die-offs. We report genomic characterization of HPAI/H5N1 in five species of marine mammals and seabirds (dolphins, sea lions, sanderlings, pelicans and cormorants). Peruvian viruses belong to lineage 2.3.4.4b, but they are 4:4 reassortants where 4 genomic segments (PA, HA, NA and MP) position within the Eurasian lineage that initially entered North America from Eurasia, while the other 4 genomic segments (PB2, PB1, NP and NS) position within the American lineage (clade C) that circulated in North America. These viruses are rapidly accruing mutations, including mutations of concern, that warrant further examination and highlight an urgent need for active local surveillance to manage outbreaks and limit spillover into other species, including humans.

Preparations are needed for future pandemics, a public health expert has said, amid concerns about the “signals” from bird flu.

Professor Devi Sridhar of Edinburgh University, who advised the Scottish Government during the coronavirus outbreak, said action was needed to avoid a repeat of that, describing it as a “tragedy for lives lost but also the restrictions put in place”.

Large numbers of sea lions have been found dead along the Argentinian coast as a result of avian influenza, or bird flu.

This most recent influx of dead sea lions marks another swath of marine mammals dying from the viral infection across South America. The Patagonian environmental authority said in a statement that 50 sea lions have been found dead so far with symptoms matching bird flu.

This is a VERY long report, but it's one of the most comprehensive summaries of H5N1 I've seen so far.

Abstract: Between 29 April and 23 June 2023, highly pathogenic avian influenza (HPAI) A(H5N1) virus (clade 2.3.4.4b) outbreaks were reported in domestic (98) and wild (634) birds across 25 countries in Europe. A cluster of outbreaks in mulard ducks for foie gras production was concentrated in Southwest France, whereas the overall A(H5N1) situation in poultry in Europe and worldwide has eased. In wild birds, black-headed gulls and several new seabird species, mostly gulls and terns (e.g. sandwich terns), were heavily affected, with increased mortality being observed in both adults and juveniles after hatching. Compared to the same period last year, dead seabirds have been increasingly found inland and not only along European coastlines. As regards mammals, A(H5N1) virus was identified in 24 domestic cats and one caracal in Poland between 10 and 30 June 2023. Affected animals showed neurological and respiratory signs, sometimes mortality, and were widely scattered across nine voivodeships in the country. All cases are genetically closely related and identified viruses cluster with viruses detected in poultry (since October 2022, but now only sporadic) and wild birds (December 2022–January 2023) in the past. Uncertainties still exist around their possible source of infection, with no feline-to-feline or feline-to- human transmission reported so far. Since 10 May 2023 and as of 4 July 2023, two A(H5N1) clade 2.3.4.4b virus detections in humans were reported from the United Kingdom, and two A(H9N2) and one A(H5N6) human infections in China. In addition, one person infected with A(H3N8) in China has died. The risk of infection with currently circulating avian H5 influenza viruses of clade 2.3.4.4b in Europe remains low for the general population in the EU/EEA, low to moderate for occupationally or otherwise exposed people to infected birds or mammals (wild or domesticated).

...But when she and her colleagues went to a farm housing foxes and mink last week, the shrieking of the birds that normally surround the barns was gone, so thinned out were their flocks. Dead gulls littered the ground. The usual barking from the foxes was also missing.

“They were in such a bad condition,” Sironen said about the foxes she saw. She said she walked through two shelters, with some 100 meters of cages on both sides. Only a few had a healthy animal left. “Everything else was either dead or dying.”

The research team, decked out in full PPE, was witnessing the toll of the spread of a highly pathogenic avian influenza, H5N1, which has reached nearly every corner of the globe in recent years and decimated untold millions of birds, domestic and wild. But the virus hasn’t been restricted to birds. It is now causing outbreaks among mammals at a scale previously unseen, including in the past month at a number of Finnish fur farms, home to mink, foxes, and raccoon dogs.

Although COVID-19 is giving us a temporary respite, influenza in humans and animals remains a serious threat. Its deadly H5N1 strain is spreading geographically and in more species of mammals, making the emergence of a pandemic strain more likely. We need to prepare.

The Department for Agriculture, Environment and Rural Affairs (DAERA) has confirmed the positive results for highly pathogenic avian influenza (HPAI) or bird flu.

A DAERA spokesperson said: "HPAI has now also been detected in two fox cubs along with wild birds in the Portrush area. While this is the first time mammals have been confirmed as having influenza of an avian strain in Northern Ireland, it is not unexpected. There have been findings of AI in mammals over recent months across Europe, Great Britain, and the Republic of Ireland."