Shamelessly stolen from /.
"Scientists at the University of Pennsylvania have announced that they have engineered a strain of the AIDS virus that fights AIDS. This strain of AIDS works like a vaccine and improved the immune system of the test subjects. After three years on this new therapy, no side effects have been observed."
"Scientists at the University of Pennsylvania have announced that they have engineered a strain of the AIDS virus that fights AIDS. This strain of AIDS works like a vaccine and improved the immune system of the test subjects. After three years on this new therapy, no side effects have been observed."