Experimental infection of chickens, Pekin ducks, Eurasian wigeons and Barnacle geese with two recent highly pathogenic avian influenza H5N1 clade 2.3.4.4b viruses
Multiple genotypes of highly pathogenic avian influenza (HPAI) H5 clade 2.3.4.4b viruses have caused epizootics in wild birds and poultry.
Avian Influenza A(H5N1) - Cambodia
WHO was notified by the country’s International Health Regulations (IHR) National Focal Point (NFP) of a laboratory-confirmed case of human infection with avian influenza A(H5N1) virus (clade 2.3.2.1c) in a 15-year-old child in the Kingdom of Cambodia.
Flu shots play an important role in protecting against bird flu. But not for the reason you might think
A current strain of highly pathogenic avian influenza, commonly known as bird flu, has become a global problem. The virus has affected many millions of birds, some other animal species, and a small number of people.
Highly pathogenic avian influenza virus H5N1 clade 2.3.4.4b in wild rats in Egypt during 2023
Avian influenza viruses (AIVs) pose continuous challenges to human and animal health worldwide. Wild birds are considered the natural reservoir for AIVs and play a major role in spreading influenza viruses over long distances.
Detection and Monitoring of Highly Pathogenic Influenza A Virus 2.3.4.4b Outbreak in Dairy Cattle in the United States
The emergence and spread of highly pathogenic avian influenza virus A subtype H5N1 (HP H5N1-IAV), particularly clade H5N1 2.3.4.4b, pose a severe global health threat, affecting various species, including mammals.
Highly Pathogenic Avian Influenza (HPAI) H5N1 Virus in Livestock
The primary introduction of disease into dairy herds has been predominantly via exposure to wild birds. The exact mechanism of spread is currently unknown, although there is potential for viral spread through milk.
Cluster of Influenza A(H5) Cases Associated with Poultry Exposure at Two Facilities — Colorado
Persons who work in close contact with dairy cattle and poultry that are infected with highly pathogenic avian influenza (HPAI) A(H5N1) virus are at increased risk for infection.
Infection of South American coatis (Nasua nasua) with highly pathogenic avian influenza H5N1 virus displaying mammalian adaptive mutations
Deadly outbreaks among poultry, wild birds, and carnivorous mammals by the highly pathogenic H5N1 virus of the clade 2.3.4.4b have been reported in South America.
Opportunities and challenges for the U.S. laboratory response to highly pathogenic avian influenza A(H5N1)
On March 25, 2024 an outbreak of highly pathogenic avian influenza (HPAI) A H5N1 was identified in dairy cows across multiple farms in the United States.
France to launch 2nd vaccination campaign against AI H5N1
In a significant move to protect its poultry industry, France is set to launch its second commercial vaccination campaign against Avian Influenza H5N1.
Antivirals for treatment of severe influenza: a systematic review and network meta-analysis of randomised controlled trials
The optimal antiviral drug for treatment of severe influenza remains unclear. To support updated WHO influenza clinical guidelines, this systematic review and network meta-analysis evaluated antivirals for treatment of patients with severe influenza.
Updates on Highly Pathogenic Avian Influenza (HPAI)
Highly Pathogenic Avian Influenza (HPAI) is a disease that is highly contagious and often deadly in poultry, caused by highly pathogenic avian influenza A (H5) and A (H7) viruses