AUTHOR=Piano Mortari Eva , Ferrucci Francesca , Zografaki Irini , Carsetti Rita , Pacelli Luciano TITLE=T and B cell responses in different immunization scenarios for COVID-19: a narrative review JOURNAL=Frontiers in Immunology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1535014 DOI=10.3389/fimmu.2025.1535014 ISSN=1664-3224