Breadcrumb Home State Hygienic Lab News State Hygienic Lab staff show exceptional commitment to serving Iowans during COVID-19 Tuesday, January 26, 2021 https://research.uiowa.edu/impact/news/state-hygienic-lab-staff-show-exceptiona… The State Hygienic Laboratory at the University of Iowa (SHL) is cross-training staff and operating 24 hours a day, seven days a week to meet testing demands.