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Alzheimer’s Test Detects Disease Decade Ahead of Onset

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A new blood test for Alzheimer’s appears to detect the disease as many as 10 years before clinical diagnosis is possible -- far sooner than other tests in development.

The test, described publicly for the first time yesterday, could soon be used to identify and treat patients with Alzheimer’s earlier in their disease progression. Those people could participate in clinical trials to help find new treatments. Already, the test distinguishes between patients and healthy elderly with 100 percent accuracy.