Bovine highly pathogenic avian influenza virus stability and inactivation in the milk byproduct lactose
A bovine isolate of highly pathogenic avian influenza H5N1 virus was stable for 14 days in a concentrated lactose solution at under refrigerated conditions.
H5N1 Bird Flu Circulating in Dairy Cows in the United States
The clade of highly pathogenic avian influenza (HPAI) viruses causing outbreaks in wild and domestic birds around the world, is appearing in dairy farms across several U.S. states since at least April 2024.
CDC pandemic review of US H5N1 virus on par with earlier assessments from same clade
The US Centers for Disease Control and Prevention (CDC) late last week published its assessment of the H5N1 avian influenza virus that infected a dairy worker in Texas.
News
Policy & Recommendations
Joint Statement of the Steering Group on Influenza Vaccination on the Council Conclusions on the Future of the European Health Union: A Europe That Cares, Prepares, and Protects
The Steering Group strongly supports promotion of immunisation and prevention, whilst recognising the need for additional measures to address existing gaps and further enhance the effectiveness of these initiatives
Communicable disease threats report: Influenza A(H5N1) – Multi-country (World) – Monitoring human cases
The ECDC Communicable Disease Threats Report (CDTR) is a weekly bulletin for epidemiologists and health professionals on active public health threats.
Results of Influenza Risk Assessment Tool
The Influenza Risk Assessment Tool (IRAT) is an evaluation tool conceived by CDC and further developed with assistance from global animal and human health influenza experts.
Influenza A (Highly Pathogenic Avian Influenza H5N1) in domestic cats
Six feline cases of Influenza A (HPAI H5N1) have been diagnosed in domestic cats in Colorado during 2024.
Colorado, Michigan report H3N2v flu infections
US COVID indicators show no sign of slowing down, with most areas of the country seeing consistent rises, the Centers for Disease Control and Prevention (CDC) said today in its latest data updates.
Outcome of H5N1 clade 2.3.4.4b virus infection in calves and lactating cows
In March 2024, highly pathogenic avian influenza virus (HPAIV) clade 2.3.4.4b H5N1 infections in dairy cows were first reported from Texas, USA. Rapid dissemination to more than 190 farms in 13 states followed.
The panzootic spread of highly pathogenic avian influenza H5N1 sublineage 2.3.4.4b: a critical appraisal of One Health preparedness and prevention
Changes in the epidemiology and ecology of H5N1 highly pathogenic avian influenza are devastating wild bird and poultry populations, farms and communities, and wild mammals worldwide.
Global Influenza Initiative podcast series: Artificial Intelligence and the Future of Influenza
Listen to Dr. Litjen Tan and Professor Raina MacIntyre discuss the potential of artificial intelligence (AI) in the influenza field, with a focus on epidemic prediction.
Clinicians detail H5N1 infections in 2 Michigan farm workers
The workers were employed at two separate farms. The first patient began having right-eye symptoms 1 day after milk had splashed in their eye while milking a cow.
