Recent viral mutations have shown avian influenza’s adaptability to mammalian hosts, prompting infectious disease, animal ...

Bird flu cases are rising rapidly in the U.S. and around the world. A new study traces how the disease spread over the last ...

Dozens of dead vultures discovered at the Conowingo Dam between Cecil and Harford counties over the weekend are being tested for avian influenza, according to Constellation Energy, which manages dam ...

H5N1 influenza is evolving rapidly, weakening the effectiveness of existing antibodies and increasing its potential threat to ...

As avian influenza, also known as bird flu or avian flu, continues to strike Delaware, many farmers have been forced to ...

The detection of bird flu in a sheep is another sign that the H5N1 virus is adapting to hop to new hosts ...

Pennsylvania has had eight commercial poultry flocks struck by HPAI so far in 2025, with turkey, duck, broiler and layer ...

LONDON — The United Kingdom reported the first confirmed case of avian influenza found in sheep, announced the country’s ...

The recent live bird market cases represent the second and third known cases of avian influenza in Philadelphia. In January, ...

Highly pathogenic avian influenza (AI) evolves to infect a new mammalian species, having made the jump to dairy cattle almost ...

While New York state has not had a case of avian influenza in dairy cows, veterinary experts say milk testing underway at ...