Braeye T, Catteau L, Brondeel R, van Loenhout JAF, et al. Vaccine effectiveness against transmission of alpha, delta and omicron SARS-COV-2-infection, Belgian contact tracing, 2021-2022. Vaccine 2023 Apr 5:S0264-410X(23)00376-6. doi: 10.1016/j.vaccine.2023.
PMID: 37085456