Factors Associated with Participation in Elementary School-Based SARS-CoV-2 Testing - Salt Lake County, Utah, December 2020-January 2021. - Lewis, Nathaniel M.; Hershow, Rebecca B.; Chu, Victoria T.; Wu, Karen; Milne, Alison T.; LaCross, Nathan; Hill, Mary; Risk, Ilene; Hersh, Adam L.; Kirking, Hannah L.; Tate, Jacqueline E.; Vallabhaneni, Snigdha; et al. (MMWR: Morbidity & Mortality Weekly Report, 2021)