There's widespread confusion and fear among scientists and doctors on the sprawling National Institutes of Health campus and at institutions dependent on the agency's funding.

Dairy cattle in Nevada have been infected with a new type of bird flu that's different from the version that has spread in ...

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

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.