The progression of the species-jumping disease has been unprecedented, including the first-ever U.S. cases of infections in ...

Lithuania has reported an outbreak of highly pathogenic H5N1 avian influenza, commonly called bird flu, on a laying hen farm ...

What’s happening in the UK is just one part of an ongoing global H5N1 outbreak. In some regions, strains of the virus have managed to spread beyond wild birds and infect mammals as well.

Public health officials are closely monitoring the latest bird flu outbreak that has sickened or killed millions of birds, chicken and cattle in the U.S. The virus, also known as avian influenza or ...

The H5N1 strain of bird ... tracking the spread of viruses internationally will be more difficult. The US withdrawal is "a concern for global health", the WHO said last week.

On a global scale, the highly pathogenic avian influenza (HPAI) H5N1 virus is spreading southwards in wild ... domestic waterfowl populations throughout Southeast Asia. In 2005, the virus spread to ...

While the H5N1 bird flu keep spreading, the first reported H5N9 outbreak in the United States has been identified on a duck ...