==Group 2 makes no correlation to anything
So you are saying that the second highest risk group for AIDS doesn't count for anything? No sale? Well at least you understand that the vast majority of the so-called "highest risk" groups are not dying of AIDS (as the AIDS establishment would have us believe). You're halfway there...keep learning and you will discover the whole truth!
I know zip about "risk groups" and AIDS. I read (past tense) "Heroin addicts are far more likely to develop pneumonia." Nothing there to tell me heroin addicts are the second highest risk group. As written it is about as relevant as "those executed by slow hanging tend to expire due to asphyxiation," or "children are more likely to contract measles."
Lousy writing may be lousy writing, but I've seen enough cases where apparently lousy writing hides an agenda that I just don't bother anymore. This is sloppy, loose, lousy writing. No sale.
Notice how the author just glosses over all those thousands of hemophiliacs who died in the early 80's from untested blood. In those days there were filthy blood donor centers in the bad part of town where druggies could shuffle in off the street and give a pint or two for $15.00.
A rational person might suspect that there was something in the blood poisoning them but the author here is too busy being clever.