Here is what we know about polio as a disease, its vaccines and the likely number of lives saved through inoculation.

Polio, a disease that can cause lifelong paralysis, has been eliminated from the U.S. Experts fear a resurgence if lifesaving ...

Here is what we know about polio as a disease, its vaccines and the likely number of lives saved through inoculation. In its early stages, poliomyelitis — known as polio — causes fatigue ...