2024 No Wastewater based measures of COVID-19 and associations with children's absenteeism at grade schools https://doi.org/10.1016/j.scitotenv.2024.178217 Solo-Gabriele, Helena M. North America Observational Epidemiological Exposure Students Elementary (K-5) Middle/Jr High (6-8) High School (9-12) Viruses Absenteeism COVID-19 COVID-19 SARS-CoV-2 school absenteeism Wastewater Wastewater-based surveillance A study of nine U.S. schools monitored wastewater SARS-CoV-2 and absenteeism over 18 months. Higher viral loads, especially in enclosed schools, correlated with increased absences, supporting wastewater monitoring as a school health indicator. 2024