Figure.

Flow diagram depicting survey results of participants (N = 719) who agreed to (n = 446) or declined (n = 273) saliva-based COVID-19 testing in kindergarten through 12th grade schools, Missouri, January 25 through March 23, 2021. Participants included students and staff members who previously received a positive test result for SARS-CoV-2 and their identified school-based close contacts during their isolation and quarantine periods. (A) 36% of student participants who agreed to a saliva test, or their parent or guardian, indicated they would have declined testing if specimens had been collected by nasal swab. (B) For participating teachers and staff, 31% indicated they would have refused a nasal swab test. (C) 98% of participants who declined a saliva test but answered our survey reported they would have refused a nasal swab test. In addition, 118 participants initially agreed to testing but were lost to follow-up before specimen collection and not administered the survey question, and 6 participants were tested but not asked the survey question.