Taucher C, Lazarus R, Dellago H, Maurer G, et al. Safety and Immunogenicity against Ancestral, Delta and Omicron Virus Variants Following a Booster Dose of an Inactivated Whole-Virus COVID-19 Vaccine (VLA2001): Interim analysis of an open-label extension of the randomized, controlled, phase 3 COV-COM J Infect 2023 Jul 3:S0163-4453(23)00367-5. doi: 10.1016/j.jinf.2023.
PMID: 37406777