Alzheimer's Disease and Infectious Causes

With the recent discovery that amyloid beta protein, the cause of plaques in Alzheimer's disease, is an antimicrobial peptide produced in response to infection, many researchers are focusing on the role infection plays in the development of Alzheimer's disease. Brain studies have also identified a number of different viruses, bacteria, fungi, and protozoa in the postmortem brain specimens of Alzheimer's patients.