"The Chinese poultry lineage may have experienced more vaccine-driven selection compared to other lineages," the researchers wrote.

When a pathogen — any organism that causes a disease — jumps species, scientists get nervous because its genetic makeup can ...

Seven Delmarva-region commercial operations have now reported cases of the highly contagious virus.

Flu activity has surged to high levels in many states, overwhelming some hospitals. Experts discuss what to expect for the ...

A 'quad-demic' of winter illnesses is surging throughout the South, Midwest, and parts of the Northeast US, according to the ...

Avian influenza A (H5N1) has mutated, so the symptoms of bird flu could change as more people get sick in 2025.

The state Department of Agriculture on Friday announced that it has detected a case of "Highly Pathogenic Avian Influenza" at ...

The widening U.S. bird flu outbreak has made its way to Maryland, which has counted two cases on commercial poultry farms — ...

In 2023, the 10 leading causes of death remained the same as in 2022. The top leading cause in 2023 was heart disease, ...

Learn about the CDC's new measures for clinicians, including prompt testing for bird flu and antiviral treatment, to respond to the outbreak.

The U.S. Centers for Disease Control and Prevention (CDC) is urging health care workers to accelerate bird flu testing ...