Nitpick: AIDS wasn’t really noticed at all in the US until the beginning of the 1980s, https://en.wikipedia.org/wiki/History_of_HIV/AIDS
Prior to the late 1970s / early 1980s, the stigma associated with homosexuality was much stronger. Being gay, and having multiple sex partners, was something that most gay men would probably not admit to. In many areas it would be admitting to a crime. So in the case histories of early AIDS sufferers, that commonality may not have been clear.
Re:Link Between Alzheimer’s and Herpes
by chiefalchemist on Saturday July 14, 2018 @07:02AM
(#17529807)
It might be a long time before we know. The fact is the body / brain is exposed to a lot of chemicals and compounds that have __never__ been verified for safety - either alone or when combined with others.
At this point there are simple too many of these and the combinations even larger.
_If__ such things contribute to anything, we'll likely never know.
Assuming there's some preventable cause or vector, anyway.