All H5N1 avian influenza virus articles
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NewsJust 10 viral particles can cause H5N1 avian flu infection in cows
Just 10 viral particles of the H5N1 bird flu that caused hundreds of influenza outbreaks in U.S. dairy cattle can cause infection in cows, a new study shows. The research also hints at why the outbreaks have confounded scientists, farmers and livestock handlers hoping to contain and prevent the disease.
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NewsNew study suggests seasonal flu vaccines may reduce severity of H5N1 bird flu infections
Researchers have found that seasonal influenza vaccines in routine global use may significantly reduce the risk of death from H5N1 infection. The findings that readily available tools may offer protection while the world races to develop more targeted solutions.
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NewsGlobal Virus Network statement on H5N1 vaccine developments
The new vaccine momentum reflects the growing urgency of avian influenza (H5N1) threat and reinforces the need for coordinated global preparedness.
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NewsBird flu risk to Danish cattle – new tool can warn farmers before infection spreads
Researchers have developed a tool that can predict where and when the risk of infection is highest. The tool is based on infection data from the U.S. outbreaks and adapted to a Danish context.
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NewsNasal vaccine combats bird flu infection in rodents
Researchers have developed an intranasal H5N1 vaccine that elicited strong immune responses when tested in hamsters and mice and prevented infections in exposed animals. The team also confirmed their vaccine remained effective regardless of prior flu exposure.
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News‘FluWarning’ system raises early alerts for virus spillovers
How can we monitor the cross-species transmission of avian flu? The answer is FluWarning, a digital system that reports abnormal changes in flu viruses. It analyses their genetic code, looking for subtle but significant changes that could indicate cross-species transmission.
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NewsH5N1 found in dairy cattle retains preference for infecting birds, representing low risk to humans
Avian influenza virus from the ongoing outbreak in dairy cattle appears to be keeping its bird-infecting features rather than adapting to better infect other mammals, according to a new study.
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NewsWith AI, researchers find increasing immune evasion in H5N1
A new analysis suggests that the H5N1 avian influenza virus is evolving clever strategies. Using artificial intelligence tools, researchers analyzed thousands of viral proteins and found that their bonds to protective antibodies have weakened over time.
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NewsH5N1 influenza viral lineages beginning to evade human immunological defenses
A new computer modelling approach predicts the protein-antibody interactions of the potentially pandemic-causing H5N1 avian influenza virus lineage. It helps to understand the viral evolution to ensure high vaccine efficacy.
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NewsCurrent antivirals likely less effective against severe infection caused by bird flu virus in cows’ milk
Scientists found that in a preclinical model, two FDA–approved flu antivirals generally did not successfully treat severe H5N1 infections. Meanwhile, the route of infection, whether through the eye, the nose or the mouth, significantly impacts effectiveness.
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NewsOlder adults might be more resistant to bird flu infections than children
Previous exposures to seasonal flu strains could prime the immune system to produce antibodies against the current version of H5N1 avian influenza virus in older adults, whilst children would benefit more from H5N1 vaccinations.
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NewsImmunity against seasonal H1N1 flu reduces bird flu severity in ferrets, study suggests
Pre-existing immunity against seasonal H1N1 flu might help explain why most reported human cases of H5N1 bird flu in the U.S. have not resulted in lethal outcomes, suggests a new study.
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NewsRaw milk is risky, but airborne transmission of H5N1 from cow’s milk is inefficient in mammals
New research suggests that exposure to raw milk infected with the currently circulating virus poses a real risk of infecting humans, but that the virus may not spread very far or quickly to others.