Viruses are tiny — and sneaky. So sneaky that some play a deadly game of hide and seek. The "seek" part is all too familiar: They're always looking for ways to infect humans. Their ability to hide is ...

Most people are dying too soon, says a study by the Center for the Biology of Chronic Disease (CBCD). Latent viruses, which lie dormant in the human body, increase all-cause mortality. And almost ...

Viruses are tiny — and sneaky. So sneaky that some play a deadly game of hide and seek. The "seek" part is all too familiar: They're always looking for ways to infect humans. Their ability to hide is ...

The avian flu virus isolated from a hospitalized teenager in Vancouver has mutations in key areas that could help the virus spread more easily in humans, scientists say. There is no indication that ...

For centuries, the nature of a fever — and whether it's good or bad — has been hotly contested. In ancient Greece, the physician Hippocrates thought that fever had useful qualities, and could cook an ...

Distinguishing between self and non-self is a critical ability of the immune system. Some pathogens have evolved proteins that resemble those of their host, a mechanism called molecular mimicry, in an ...