Experimental Alzheimer's Vaccine Shows Promise

An experimental Alzheimer's vaccine is offering some hope for researchers and patients.

Scientists at the Oklahoma Medical Research Foundation in Oklahoma City say the vaccine could slow down or even prevent the disease.

One researcher says the results are extremely exciting and show more testing is needed.

The experimental vaccine is designed to stimulate the body's own immune system to help it fight dementia in the brain.

Human testing could begin in three to four years.