Here is a comment from ‘HoboProjekt’ last night to this 2008 post.
How do they get to stay in the USA when they are HIV positive? In many countries, that is a definite exclusion from staying. It creates a hardship on the nation’s medical system and being that the USA doesn’t have a national health system- per say, that means these people are unlikely to receive proper medical care and thus be a drain when they become very ill or pass on. Not to mention the possibility of spreading this diseases on to other people.
The answer, of course, is that Congress passed a law and the President signed it allowing anyone with HIV to come to the US. We taxpayers then provide them with their medical care.