Egg producers in parts of Weld County will have to stop the movement of their chickens until further notice after the state confirmed an outbreak of avian influenza in a flock late last month.

A new nasal spray vaccine for H5N1 bird flu has shown promising early results, raising hopes it could one day be used to help ...

A different strain of H5N9 has shown up in U.S. birds before.

After battling the deadly COVID-19 virus for over 5 years, the world is now on the verge of witnessing the rise of another ...

Seven outbreaks of highly pathogenic avian influenza (bird flu) were reported last month, the Centers for Disease Control (CDC) said yesterday, urging poultry farm workers to enhance protective ...

According to an article on Earth.com, the risk of H5N1 to the general public remains low. In 2024, the United States reported ...

Prior seasonal influenza virus immunity did not impair antibody responses or protection conferred by the intranasal H5N1 vaccine.

Just two weeks into 2026, outbreaks of highly pathogenic avian influenza on poultry farms have been confirmed across the ...

As well as the poultry outbreaks in Namibia and Nigeria outlined above, a total of 26 outbreaks of HPAI have been confirmed ...

Post-2020, highly pathogenic avian influenza H5 circulation is characterised by spatially expanded ecological suitability, changes in key environmental predictors, and a wider range of avian species ...

The H5N1 2.3.4.4b strain, which emerged as the dominant variant in 2021, has evolved to spread rapidly across species barriers. Migratory birds, shifting climate patterns, and weakened biosecurity ...