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PBS News Hour

Alzheimer’s could be caused by past infections

More than five million Americans live with Alzheimer’s, a degenerative brain disease, and it is also the fifth leading cause of death for people over 65 years old in the U.S. A new study suggests it may stem from the brain’s past attempts to fight off infections. Rob Moir, one of the study’s authors, joins Lisa Desjardins to discuss.
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