I gather flu vaccine has similar effect size. Nobody knows why. Ask, and people speculate about inflammation.

Having been treated for herpes lately -- valacyclovir, lately -- seems too to have outsize effect. I get all three.

People doing autopsies say brains they examine are very often laced with herpes virus and bacteria, vs. doctrine that insists nothing gets in.

US grants $2B annually to study plaque formation in transgenic mice. Approximately none of it goes for anything of value. When the amyloid boat sinks, a lot of biochemists will need to find something else to do. They would better look early.