The US is seeing surging numbers of a virus that can cause life-threatening swelling in and around the brain and spinal cord. And cases will continue to climb, as August has historically been the ...

Two people have died from a mosquito-borne disease that is surging across the United States.

Add Yahoo as a preferred source to see more of our stories on Google. Severe flu seasons in recent years have brought to light a little-known danger of influenza infections in kids: a rare brain ...

The human brain remains one of the most protected organs in the body, surrounded by layers of tissue and bathed in specialized fluid designed to prevent harmful substances from reaching this vital ...

Measles is more than a rash, runny nose and a fever—it can cause brain swelling, blindness and wipe out the immune system's memory, leaving unvaccinated children, and even adults, vulnerable to ...