AUTHOR=Lontano Alberto , Regazzi Luca , Tona Diego Maria , Di Pumpo Matteo , Porcelli Martina , Cacciuttolo Maria Gabriella , Parente Paolo , Gasbarrini Antonio , Grandaliano Giuseppe , Panocchia Nicola , Lopetuso Loris , Pasciuto Tina , Cadeddu Chiara , Bruno Stefania , Laurenti Patrizia , Pascucci Domenico , Pastorino Roberta TITLE=Digital integration between hospitals and local health authorities for enhanced vaccination coverage among frail patients: the CareVax study protocol JOURNAL=Frontiers in Public Health VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1490244 DOI=10.3389/fpubh.2025.1490244 ISSN=2296-2565