Oral microbiome as a source to enhance immunity against infectious diseases?

It's being actively investigated whether the bacteria that cause gingivitis could be linked to Alzheimers or other neurological disorders.

In fact, there is a public company working on it, which got early funding from Breakout Ventures, a spinoff of the Thiel foundation's Breakout Labs.

https://scienceofparkinsons.com/2019/05/03/cortexyme/

https://www.crunchbase.com/organization/cortexyme/company_fi...