Previously undetected H5N1 avian flu cases in farmworkers revealed in new report
A team of US researchers has revealed evidence of highly pathogenic H5N1 avian flu infections in two Texas farmworkers not previously confirmed to have the disease.
CDC to offer seasonal flu shots to farmworkers amid bird flu outbreak
The Centers for Disease Control and Prevention is launching a $5 million initiative to provide seasonal flu shots this fall to about 200,000 livestock workers in states hardest hit by the bird flu outbreak.
Home/News/New initiative launched to advance mRNA vaccine development against human avian influenza (H5N1) Credits New initiative launched to advance mRNA vaccine development against human avian influenza (H5N1)
A new project aiming to accelerate the development and accessibility of human avian influenza (H5N1) messenger RNA (mRNA) vaccine candidates for manufacturers in low- and middle-income countries has been launched today.
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Avian influenza A(H5N1): For health professionals
Federal, provincial and territorial authorities are currently responding to a widespread outbreak of A(H5N1) across Canada.
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 A(H5N1) Bird Flu Response Update
CDC provides an update on its response activities related to the multistate outbreak of avian influenza A(H5N1) virus, or "H5N1 bird flu," in dairy cows and other animals in the United States.
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Policy & Recommendations
CDC Confirms Three Human Cases of H5 Bird Flu Among Colorado Poultry Workers
Three additional human cases of highly pathogenic avian influenza (HPAI) A(H5) (“H5 bird flu”) virus infection have been confirmed by the Centers for Disease Control and Prevention (CDC) in association with a second poultry farm in Northeast Colorado.
Human H5N1 cases in the U.S. are rising. That's bad timing with flu season, bird migrations just months away
Cluster of infections among Colorado farmworkers could signal new challenges ahead
Spillover of highly pathogenic avian influenza H5N1 virus to dairy cattle
Highly pathogenic avian influenza (HPAI) H5N1 clade 2.3.4.4b virus has caused the death of millions of domestic birds and thousands of wild birds in the U.S.
Strain-dependent variations in replication of European clade 2.3.4.4b influenza A(H5N1) viruses in bovine cells and thermal inactivation in semi-skimmed or whole milk
Cattle were once thought to be resilient to avian influenza virus (AIV) infections [1], until the recent widespread influenza A(H5N1) virus infections in dairy cattle in several states in the Unites Stares (US) since March 2024 [2].
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Scientific Papers
Déjà Vu All Over Again — Refusing to Learn the Lessons of Covid-19
The spread of H5N1 avian influenza among cattle and other farm animals as well as to agricultural workers in the United States has raised concerns about the potential for an influenza pandemic.
Understanding the Threat of Bird Flu
Since 2022, a new, highly pathogenic strain of H5N1 influenza or “bird flu” has spread worldwide.