Alzheimer's disease is associated with the bacteria Chlamydia pneumoniae and Helicobacter pylori, and with the protozoan parasite Toxoplasma gondii. Herpes simplex virus 1 is associated with Alzheimer's disease in individuals who possess the APOE-4 form of the APOE gene (APOE-4 enables the herpes virus to enter the brain).
Stroke is associated with the bacteria Chlamydia pneumoniae, Helicobacter pylori, Mycobacterium tuberculosis, and Mycoplasma pneumoniae, as well as the virus va... more