quote [ In a landmark study, researchers connected two of the most ubiquitous viral infections to Alzheimer’s disease.
Scientists …collected tisssue samples from 944 brains …The team found over 500 types of viruses present in these brains. Two, however, stood out as existing in particularly high concentrations in brains with Alzheimer’s: human herpes virus (HHV) 6 and 7. … herpes is derived from a Greek word meaning “to creep” because of their ability to crawl up our nerves and plant themselves, in the case of HHV 6 and HHV 7, our brains. Scientists have estimated that 90% of the US population over the age of 5 have HHV 6 or 7, but never have any symptoms. ]