Sharon Reynolds for the National Institutes of Health

Animations like this one, which shows HIV infecting a human cell, are helping researchers probe complicated, dynamic molecular interactions.

Certain immune cells produce bleach to fight microbes, but little is known as to how it works.

The experimental contact lens offers new hope to preventing glaucoma-induced blindness.

Researchers have learned many new things about how cancer cells develop and grow.

By studying how the flu virus operates, researchers hope to develop more effective vaccines.