A source says USDA employees who worked on bird flu response have accepted incentives to leave the agency, which could strain ...

The flu is a contagious viral infection of the respiratory system that affects the nose, throat and lungs. It is caused by influenza viruses. Symptoms of mild flu infections can resemble those of the ...

Knowable Magazine answers questions about how dangerous bird flu is, where it came from, and what key events paved the way ...