WAAC (pronounced like ‘whack’) is a non-profit organisation with a vision for a world of positive healthy people in inclusive, connected communities. Established in 1985, WAAC’s purpose is to optimise the health and wellbeing of all, through reducing the impact of stigma and discrimination, improving access to health services and information and reducing transmission of HIV, sexually transmitted infections (STIs) and blood-borne viruses (BBVs).