Alzheimer’s and vaccines

WSJ: Vaccines in general protect against Alzheimer’s

The gist of the article is that evidence is pouring in of a strong, though unexpected, link between vaccines, in general, and protection against Alzheimer’s.

It appears that activating the immune system, regardless of the targeted microbe, also activates the removal of the plaques associated with cognitive decline. 

That would help explain why Alzheimer’s seems to be paradoxically more prominent in countries with better sanitation and less exposure to infectious disease. 

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