Larry Campbell's election as mayor in 2002 was in part due to his willingness to champion alternative interventions for drug issues, such as supervised injection sites. The city has adopted a "Four Pillars Drug Strategy", which combines harm reduction (e.g. needle exchanges, supervised injection sites) with treatment, enforcement, and prevention. The strategy is largely a response to the endemic HIV and hepatitis C among injection drug users in the city's Downtown Eastside neighbourhood. The area is characterized by entrenched poverty, and consequently is home to the "low track" street sex trade and a bustling "open air" street drug market, which gave rise to a significant AIDS epidemic in the 1990s. Some community and professional groups—such as From Grief to Action and Keeping the Door Open—are fostering public dialogue in the city about further alternatives to current drug policies. The harm reduction strategies appears to have been successful with the deactivation of the St. Paul's Hospital Ward 10C, on May 27, 2014, due to the near-elimination of AIDS cases in British Columbia.