medical research

Six years ago, husband-and-wife scientists used gene therapy to cure colorblindness in monkeys. Now they're trying to make it work for the millions of people with faulty color vision.

Our immune systems constantly fight off disease — protecting us from colds, flu and infection. An experimental treatment called immunotherapy is helping patients' immune systems fight off cancer.

A natural compound kills germs that have become resistant to antibiotics, researchers say. If it works in humans, it could help combat diseases like tuberculosis.

A neurologist's unorthodox thinking led to an experimental drug that allows trapped nerve fibers to grow again. And that growth helps amplify signals that restored movement in laboratory rats.

Justin McCowan wanted to help find a cure for Alzheimer's because it's more common in people like him who have Down syndrome. He died in his sleep last week at age 40.