The Plague of the 21st Century?

I suspect I shall probably end up writing some more about this topic at other times, seeing as it's so huge, and I would've written sooner, but I've been swamped lately.
I started doing some volunteer clinical work at one of the major HIV/AIDS clinics in Toronto, to get my hands wet again. It's surprising at how much has changed, even over the span of my relatively short career. I feel like a bit of a medical student again, as I no longer remember (well, mainly cause they didn't exist at the time) medications and treatment regimens.
I am also surprised (though I really shouldn't be, as I knew it as 'fact' in my head) at the profile of the people that I meet: old (even very old, with new diagnoses in their 70s) and young, gay and straight, white and non-white, married and not, immigrant and Canadian-born, drug users or clean. I am further astonished at how relatively well, even downright healthy, HIV carriers look here in Canada. I had kind of forgotten that people no longer really die of AIDS here anymore, as I still remember vividly people dying of AIDS in front of me in Africa.
I think it's that last statement that strikes me most. Some patients are able to body-build here and get good nutrition, so you would not recognize the face of HIV walking the streets of Toronto. It is a far cry from the gaunt, emaciated, lethargic half-corpses that die lying on some mattress in an African hospital hallway... that's the injustice that cries out for me...