Bird flu, also known as avian influenza, is a highly contagious viral disease that primarily affects poultry and wild birds, ...

Judy Simon noticed something strange during her Thursday evening grocery trip in Redmond. The shelves held no chicken eggs, only a few cartons of quail eggs.

The U.S. government failed to eliminate the virus on dairy farms when it was confined to a handful of states. Now at least 875 herds across 16 states have tested positive.