A narrative review of COVID-19 epidemiology and mRNA vaccine impact in children < 12 years during the omicron era (November 2021 – December 2025) - Zheng, Zhe; Yousefi, Mitra; Marks, Morgan; Dixit, Avika; Wahid, Rahnuma; Viscidi, Emma; Anderson, Evan J. (Expert review of vaccines, 2026)