Modelling COVID-19 pandemic towards comparison of Omicron and Delta variants in Nigeria: development of predictive tools for forecasting and projection. - Bolaji, Bolarinwa; Omede, Benjamin Idoko; Celestine, Agbata Benedict; Halid, Omobolaji; Dervishi, Raimonda; Awasthi, A. K.; Emadifar, Homan; Smerat, Aseel (BMC Infectious Diseases, 2025)