The hunt for the AIDS vaccine.

Documentary charting the struggle to discover a vaccine for the AIDS virus. In 1984, when HIV was discovered to be the cause of AIDS, there were confident predictions that a vaccine to combat the disease would be ready for testing in just two years. Almost 2 decades later, with 25 million dead, there is still no sign of a vaccine, with brilliant scientists finding themselves continually thwarted by the virus's ability to change its structure. This documentary follows the microbiological detective story that has seen some of the best brains struggling to defeat the most extraordinary bug the world has ever seen.