I've been reading Tracy Hickman's work for a long time now, and this is quite possibly the best thing he's ever written.
In the near future, a cure is found for AIDS, but the cure causes a worse and more lethal disease known as V-CIDS. By 2010 the United States has fallen under martial law, and the disease has run rampant. The government has taken the drastic steps of herding those infected into prison camps to die.
When millionaire Michael Barris sneaks into one of the camps to find his infected son, he finds a much darker side to the camps that he helped create.
This is likely Hickman's best writing and his most meaningful work. It's a very dark novel, and it's even a little scary to think about. Even if you've never liked anything he's done before, you might want to give this one a read.