H5N1 Flu

Defra says the disease has been confirmed at poultry farms near Pocklington and Alford.

EMERYVILLE, Calif.--(BUSINESS WIRE)--Jan 28, 2025--

A study of bird flu viruses in cows has stated that the H5N1 strain does not pose an increased threat to humans.

H5N1 bird flu has affected more than 136 million birds across the US since January 2022, when the virus was detected in wild aquatic birds. To curb its spread, entire poultry flocks are culled upon detection, driving egg prices to record highs. By December 2024, the average price for a dozen eggs nationwide soared to $4.15, impacting households.

A different strain of H5N9 has shown up in U.S. birds before.

Bird flu, or avian influenza, is spreading among livestock and other mammals in the United States, raising concerns that another pandemic may be looming. Last month, California declared a state of emergency due to rising cases in dairy cattle, and there have been over 65 human cases in the U.S. during this outbreak. While cases have been largely mild and risk to the public is still considered low, scientists warn it could evolve and become more dangerous. Curious about other health updates? Email us at shortwave@npr.org.

But reinfections suggest that the virus, called H5N1, could circulate on farms indefinitely, finding opportunities to evolve into a more dangerous form – a “high-risk” scenario, said Dr Louise Moncla, an evolutionary biologist at the University of Pennsylvania Read more at straitstimes.com.

Avian influenza first emerged in 1996 but since 2020, the number of outbreaks in birds has grown exponentially, alongside an increase in the number of infected mammals.

The detection of H5N9, while uncommon, adds to growing concerns about the evolving threat...

As the bird flu continues to spread across the United States, this map show the extent of the outbreak.

Reassortant highly pathogenic avian influenza A(H5N2) clade 2.3.4.4.b viruses were detected from ducks and environmental samples in Egypt, June 2024. Genomic and phylogenetic analyses revealed a novel genotype produced by reassortment of an A(H5N1) clade 2.3.3.4b virus with an A(H9N2) G1-like virus. …

New incursions of H5N1 clade 2.3.4.4b highly pathogenic avian influenza viruses in wild birds, South Korea, October 2024

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GUILFORD, Conn. (WTNH) — The bird flu wiped out another backyard flock in Connecticut: this time in New Haven County. The first flock was in New London County and now the second one is in Guilford.…

The UK Health Security Agency said the person was infected after 'close and prolonged contact with a large number of infected birds'

Read Where poultry's king, bird flu is a crisis by Tom Baxter for SaportaReport here.

The pork industry is actively monitoring the spread of highly pathogenic avian influenza (H5N1), emphasizing the importance of preparedness while reassuring consumers about the safety of pork products. Dr. Brett […]

Second human case of H5N1 bird flu caught on farm in West Midlands but risk to public remains very low, says UKHSA

The Swine Health Information Center (SHIC) has received an overwhelming response to its recent call for research proposals aimed at enhancing the swine industry’s defenses against H5N1 influenza. In a […]

U.S. authorities also identified the more common H5N1 strain on the same farm in Merced County, California.

Farm worker said to be well and being monitored at specialist infectious disease ward after testing positive

Discovery of H5N9 came alongside detection of the more common H5N1 on the farm, leading to 119,000 birds’ deaths

A person in the West Midlands has contracted the H5N1 strain of bird flu, the UK Health Security Agency (UKHSA) has today confirmed.