How the 1987 AIDS campaign 'Don't Die of Ignorance' transformed social attitudes.
Mobeen Azhar investigates the rising popularity of 'chemsex' parties on London's gay scene
Should a patient be tested for HIV to determine whether someone else may be infected?
Jim Al-Khalili in conversation with Dr Jeremy Farrar, director of the Wellcome Trust.
How the NHS responded to a new fatal disease, Aids, in the 1980s.