The problem is, there is no cure. However, with medical care (HAART), HIV+ people can walk around and live a reasonably fulfilling life - while infecting other people. So, do we quarantine them for life?
The parallels between HIV and leprosy seem significant.
It's great to have a straight man in the crowd. That was my point. It is an incurable, transmissible disease. The only way to manage it is by permanent quarantine until there is a way to cure it. Leper colonies provided a suitable approach for leprosy. We have drugs to treat Mycobacterium leprae today. We don't need leper colonies anymore. HIV/AIDS colonies should be considered. Let them be economic islands apart from the healthy population. They can be productive without being free to travel around and infect healthy people.