Breadcrumb Home News As COVID-19 Vaccine Trials Move At Warp Speed, Recruiting Black Volunteers Takes Time As COVID-19 Vaccine Trials Move At Warp Speed, Recruiting Black Volunteers Takes Time September 11, 2020 Rachel Hardeman, PhD, MPH is quoted. Previous News Five Years After COVID-19 Lockdown, Racial Health Disparities Linger 2025 Societal Impact Award 5 Years Later: How COVID-19 Changed Minnesotans