Afternoon Edition Know your city better. Today’s most important Chicago news, straight to your inbox – delivered weekday ...

Researchers have a new hope for preventing severe illness from the bird flu after finding a groundbreaking antibody treatment ...

Bird flu has decimated poultry flocks and infected cattle herds. The risk to humans is currently low, but that could easily change as influenza can rapidly change.

Mitochondria, often seen as cellular powerhouses, play a surprising role in immune regulation. Researchers found that ...

A new version of the virus, known as D1.1, was confirmed in Nevada, the USDA said. It was detected in milk collected as part of a surveillance program. At least 67 people in the U.S. have been ...

Hives, also known as urticaria, are raised, itchy welts on your skin that occur due to an allergen. The reaction is uncomfortable, but it’s often not serious.