More specifically, Herpes Simplex. I don't remember where I read it, but I recall a paper arguing for Herpes being one of the viruses considered for causing (so

More specifically, Herpes Simplex. I don't remember where I read it, but I recall a paper arguing for Herpes being one of the viruses considered for causing (some cases of) Alzheimer's. It's even considered that amyloid beta may be a natural response of the body to the infection, not the cause: https://www.alzheimers.net/alzheimers-and-herpes/ https://www.alzheimers.net/alzheimers-and-herpes/