Longitudinal SARS-CoV-2 seroprevalence among learners, parents, and teachers in a South African school community. - Dassaye R; Chetty T; Daniels B; Ramraj T; Buthelezi S; Mohlabi K; Reddy T; Singini I; Gwebushe N; Goga A (Frontiers in public health, 2026)