Siegfried, N. L.; de Voux, A.; Jona, K.; Yun, J. A.; Chetty, T.; Mabona, M.; Els, F.; Mdose, H.; Kuonza, L.; Hsiao, M.; Mathews, C. SARS-CoV-2 Transmission Risk in the School Environment: A Pilot Case-Ascertained Prospective Study to Inform Future School-Based Surveillance. . S Afr Med J 2023, 113 (5), 30-38. https://doi.org/10.7196/SAMJ.2023.v113i5.16736.