He was in critical condition after contracting West Nile virus. He showed resolve in returning to the broadcast booth.

Viruses are often seen only as killers—responsible for diseases like HIV, Ebola, and influenza. But what if we told you that ...

HANOVER, N.H. -- Filmmaker Ken Burns views the Vietnam War as a virus that infected Americans with an array of chronic illnesses -- alienation, a lack of civil discourse, mistrust of government and ...

Even viruses have to contend with parasites in the form of sponging relatives – and these cheats may be much more common and important than biologists thought. In flu infections, such viruses may ...