So here are the links to articles about Alzheimers & spirochetosis, as follows- Borrelia Burgdorferi is the lyme disease spirochete. Other borrelia are spirochetes of the larger borrelia family and not just Lyme.
I am too tired to go and refind the persistent brain infection articles but there are many of them.



Beta-amyloid deposition and Alzheimer's type changes induced by Borrelia spirochetes.

http://www.ncbi.nlm.nih.gov/pubmed/1...ubmed_RVDocSum

**********************************

Borrelia burgdorferi persists in the brain in chronic lyme neuroborreliosis and may be associated with Alzheimer disease.

http://www.ncbi.nlm.nih.gov/pubmed/1...ubmed_RVDocSum

*************************************

Plaques of Alzheimer's disease originate from cysts of Borrelia burgdorferi, the Lyme disease spirochete.

http://www.ncbi.nlm.nih.gov/pubmed/1...RVAbstractPlus

**************************************

Alzheimer's neuroborreliosis with trans-synaptic spread of infection and neurofibrillary tangles derived from intraneuronal spirochetes

http://www.ncbi.nlm.nih.gov/pubmed/1...RVAbstractPlus

******************************************

Alzheimer's disease Braak Stage progressions: reexamined and redefined as Borrelia infection transmission through neural circuits.

http://www.ncbi.nlm.nih.gov/pubmed/1...RVAbstractPlus

************************************************

Alzheimer's disease--a spirochetosis?

http://www.ncbi.nlm.nih.gov/pubmed/8...ubmed_RVDocSum


************************************************** **

Further ultrastructural evidence that spirochaetes may play a role in the aetiology of Alzheimer's disease.

http://www.ncbi.nlm.nih.gov/pubmed/7...ubmed_RVDocSum


**************************************************