We report a natural infection with a Eurasian highly pathogenic avian influenza A(H5N1) clade 2.3.4.4b virus in a free-ranging juvenile polar bear (Ursus maritimus) found dead in North Slope Borough, Alaska, USA.

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.

The United States has the strongest avian influenza surveillance program in the world.

The vaccine is intended for those most exposed to potential transfers of avian influenza from birds or animals, such as poultry farm workers and veterinarians.

Although bird flu viruses do not normally infect humans, sporadic human infections have occurred. It is important to note that “highly pathogenic” refers to severe impact in birds, not necessarily in humans.

On March 25, 2024, immediately following the first detection of H5N1 in dairy cattle in the Texas panhandle region, USDA and HHS began their work to understand the origin of the emergence and its potential impact in bovines and humans.

CDC is working in collaboration with the U.S. Department of Agriculture (USDA), the Food and Drug Administration (FDA), state public health and animal health officials, and other partners using a One Health approach.

Hosted by UKHSA and initially chaired by Dame Jenny Harries, the new Network will strengthen disease surveillance and outbreak response across the European Region

Health is one of the main issues on the minds of voters (32%) together with the fight against poverty and social exclusion (33%).