Avian flu alert: Understanding the circulating influenza virus H5N1's threat
Although the current public health threat posed by the avian flu is low due, the virus’s genetic changes and cross-species infections raise concerns
CDC A(H5N1) Bird Flu Response Update
In this week's update, CDC shares information about ongoing serology studies in Colorado and Michigan, genetic characterization of viruses from recent human cases in Colorado poultry workers, and how CDC's National Syndromic Surveillance Program
France reports avian influenza on farm for first time since January
A French farm has had an outbreak of highly pathogenic avian influenza for the first time since January, Reuters reported, citing the agriculture ministry in a statement late on Tuesday.
Updated joint FAO/WHO/WOAH assessment of recent influenza A(H5N1) virus events in animals and people
At the present time, based on available information, FAO-WHO-WOAH assess the global public health risk of influenza A(H5N1) viruses to be low.
How is bird flu affecting animal populations?
The world is currently seeing the fastest-spreading, largest-ever outbreak of H5N1, a highly contagious, deadly strain of avian influenza.
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.