Pediatric Academic Societies Apr 24 2026 Ambient air pollution is associated with respiratory infection burden in the first year of life, according to preliminary findings from the Immune Development in Early Life (IDEaL) Rome Cohort. Findings from the cohort will be presented during the Pediatric Academic Societies (PAS) 2026 Meeting, taking place April 24-27 in Boston. Environmental exposures during infancy may influence immune development and respiratory health. While the harms of tobacco