AIDS is the name given to the syndrome of those who get their immune system heavily debilitated or even destroyed. Its not a "disease" per se, its a condition where your immune system is no longer able to accomplish its function in your body's defense.
And HIV does lead to that state (AIDS) once the infection spreads and destroy your white blood cells.
"There is enough on earth for everybody's need, but not for everyone's greed." - Mohandas Gandhi