In 2016, the MOH tasked the BC-CfE with evaluating health outcomes associated with direct acting antivirals (DAAs) and to identify the population at greatest risk for re-infection in order to understand the larger context driving the overall social and economic costs of HCV infection in BC. To this end, the preservation of sustained virologic response (Per-SVR) study was developed. Per-SVR is Prospective clinical cohort of people recently completed DAAs and achieved sustained virologic response (SVR).