2024 Yes https://doi.org/10.1186/s12887-024-04904-x Bauhofer, Adilson Fernando Loforte Africa Observational Epidemiology Study Students Elementary (K-5) Middle/Jr High (6-8) Viruses COVID rates Prevalence SARS-CoV-2 School-aged children Maputo, Mozambique This cross-sectional study used antigen and antibody tests in 736 Mozambican schoolchildren, finding low active SARS-CoV-2 infection (0.5%) but high antibody prevalence (80.7%). Urban children had higher exposure odds, supporting targeted public health action.