2024 Yes Predicting virologically confirmed influenza using school absences in Allegheny County, Pennsylvania, USA during the 2007-2015 influenza seasons https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8542956/ Quandelacy, Talia M. North America Observational Modeling Students Elementary (K-5) Middle/Jr High (6-8) High School (9-12) Temperature Humidity Human influenza Prediction School-aged children Surveillance Using absences from K-5 schools and health data over seven seasons, models predicted confirmed influenza cases. Elementary school absences improved forecasts, supporting their use in community influenza surveillance systems. 2021