Avian Influenza News and Research

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Avian influenza is an infection caused by avian (bird) influenza (flu) viruses. These influenza viruses occur naturally among birds. Wild birds worldwide carry the viruses in their intestines, but usually do not get sick from them. However, avian influenza is very contagious among birds and can make some domesticated birds, including chickens, ducks, and turkeys, very sick and kill them.

Experts explain how H5 avian influenza adapts to infect more animals

The Gs/Gd lineage of highly pathogenic H5 avian influenza viruses—including H5N1—has rapidly evolved, spreading globally and infecting a growing range of birds, mammals, and occasionally humans. This review highlights the expanding risks, the challenges of cross-species transmission, and urgent needs for surveillance, vaccination, and a unified One Health response.

25 May 2025

New model reveals H5N1 is spreading undetected in US dairy herds

Researchers developed a nationwide model to simulate the spread of H5N1 in US dairy cattle, revealing significant under-reporting and predicting continued outbreaks into 2025. Targeted farm-level biosecurity and surveillance are urgently needed to contain the epidemic.

11 May 2025

HHS and NIH announce the development of next-generation, universal vaccine platform

Colorized transmission electron micrograph of influenza A/H1N1 virus particles. The U.S. Department of Health and Human Services (HHS) and the National Institutes for Health (NIH) today announced the development of the next-generation, universal vaccine platform, Generation Gold Standard, using a beta-propiolactone (BPL)-inactivated, whole-virus platform.

1 May 2025

Urgent action needed to close gaps in global pandemic preparedness

The Global Virus Network (GVN) is highly concerned that the world is unprepared for the next pandemic and has not incorporated the lessons learned from COVID-19.

30 Apr 2025

Global Virus Network urges action to prevent H5N1 pandemic

Today, the Global Virus Network (GVN), representing eminent human and animal virologists from 80+ Centers of Excellence and Affiliates in 40+ countries, published a comprehensive analysis and call-to-action in The Lancet Regional Health-Americas on the North American avian influenza virus, or H5N1, outbreak. The GVN calls on world governments to address the threat of H5N1 avian influenza by enhancing surveillance, implementing biosecurity measures, and preparing for potential human-to-human transmission.

29 Apr 2025

H5N1's evolutionary leap could undermine vaccines and heighten human infection risk

From egg prices to pet food recalls – and now, confirmation that another strain of bird flu has infected a large commercial flock of broiler chickens on a Mississippi farm – headlines are capturing escalating concern over H5N1's spread.

24 Apr 2025

New biosensor offers fast detection of H5N1 in farm air

As highly pathogenic H5N1 avian influenza continues to spread in the U.S., posing serious threats to dairy and poultry farms, both farmers and public health experts need better ways to monitor for infections, in real time, to mitigate and respond to outbreaks.

24 Apr 2025

Baloxavir marboxil shows promise in reducing household flu spread

One dose of the antiviral baloxavir marboxil lowers the chance of transmitting the influenza virus to family members by about 30%, according to research in the New England Journal of Medicine.

24 Apr 2025

Public ignorance and apathy towards bird flu could hinder preventive efforts

In an editorial in the American Journal of Public Health, a team led by researchers from the CUNY Graduate School of Public Health and Health Policy (CUNY SPH) say public ignorance and apathy towards bird flu (highly pathogenic avian influenza, or HPAI) could pose a serious obstacle to containing the virus and preventing a larger-scale public health crisis.

17 Apr 2025

Vaccine trial shows promise for saving California condors from bird flu

Researchers evaluated the safety and immune response of a poultry-derived H5N1 avian influenza vaccine in black vultures and critically endangered California condors. The findings support the use of vaccination as a conservation tool against deadly avian flu outbreaks.

17 Apr 2025

Breakthrough in chicken genomics offers hope against avian influenza

An international team of researchers led by Professor Huaijun Zhou from the UC Davis Department of Animal Science has created the first-ever detailed map of how genes are regulated in chickens - a breakthrough that could help scientists breed birds that are more resistant to diseases like avian influenza.

10 Apr 2025

Current antivirals not successful in treating severe H5N1 bird flu infections

As the H5N1 avian influenza outbreak continues, scientists are working to better understand the virus's threat to human health.

17 Mar 2025

U.S. consumers still unaware of raw milk risks despite bird flu findings

Although the Food and Drug Administration (FDA) located H5N1 bird flu virus in samples of raw, or unpasteurized, milk in tests in four states in April 2024, and bird flu has been detected in commercially sold raw milk, many Americans do not know that consuming raw milk and its products poses greater health risks than consuming pasteurized milk and its products, especially for children.

14 Mar 2025

Older adults may have stronger immunity to bird flu, Penn study finds

Prior exposures to specific types of seasonal influenza viruses promote cross-reactive immunity against the H5N1 avian influenza virus, according to new research from the Perelman School of Medicine at the University of Pennsylvania.

13 Mar 2025

New sensor offers rapid detection of airborne bird flu virus

Recent outbreaks of highly pathogenic avian influenza (also known as bird flu) have created a need for rapid and sensitive detection methods to mitigate its spread.

7 Mar 2025

Air sampling detects 70–90% of poultry viruses and reveals 50 more hidden threats

Researchers found that environmental sampling in live-bird markets detects 70–90% of poultry viruses, often outperforming traditional swab methods, and identified 50 additional viruses, some from non-avian sources.

26 Feb 2025

Study finds strong evidence that bird flu spreads through the air between farms

Researchers provided genetic and meteorological evidence suggesting that windborne transmission of HPAI H5N1 over 8 km is possible, highlighting its role in poultry farm outbreaks.

24 Feb 2025

The growing list of human viruses: Are we prepared for the next outbreak?

Researchers review the ever-growing list of human viruses, examining their diversity, transmission pathways, and the urgent need for prevention and global surveillance.

12 Feb 2025

Single dose of antibody shields macaques from severe H5N1 influenza

National Institutes of Health (NIH) scientists and their colleagues report that a single dose of a broadly neutralizing antibody (bnAb) administered prior to virus exposure protects macaques from severe H5N1 avian influenza.

11 Feb 2025

House cats with bird flu could pose a risk to public health

More than 80 domestic cats, among many other types of mammals, have been confirmed to have had bird flu since 2022 — generally barn cats that lived on dairy farms, as well as feral cats and pets that spend time outdoors and likely caught it by hunting diseased rodents or wild birds.

10 Feb 2025