Government scientists in Australia are reporting progress on developing a blood test to screen people for Alzheimer's disease, the most common form of dementia.
In tests on more than 1,000 people, an experimental test did a good job of indicating how much of the telltale Alzheimer's plaque lurks in the brain.
If the test proves accurate in larger studies, it could offer a way to check people having memory problems to see who needs more definitive testing for the disease.
The results were reported Wednesday at an Alzheimer's conference in France.
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