CSDE Affiliate Anirban Basu (Health Economics) along with other researchers at UW recently published a study in Gastroenterology and Hepatology that explored trends in utilization and costs following a statewide Hepatitis C elimination initiative in Washington. This case series analysis of state claims data for 21+ million individuals found that the number of HCV tests per month increased substantially 1 year after implementation, with prevalence increasing from 2017 to 2021 before declining significantly during 2022. Total costs for care increased from 2017 through 2019, consistent with higher prevalence during this period, but declined after mid-2020, even when prevalence was increasing. These findings suggest that expanded screening and access to treatment may decrease costs of HCV care over time.