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April 5, 2023VaccineOpen Access

Vaccine effectiveness against transmission of alpha, delta and omicron SARS-COV-2-infection, Belgian contact tracing, 2021–2022

Toon Braeye Lucy Catteau Ruben Brondeel Joris Adriaan Frank van Loenhout Kristiaan Proesmans Laura Cornelissen Herman Van Oyen Veerle Stouten Pierre Hubin Matthieu Billuart Achille Djiena Romain Mahieu Naïma Hammami Dieter Van Cauteren Chloé Wyndham-Thomas

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Abstract

While we observed VOC-specific immune-escape, especially by Omicron, and waning over time since immunization, vaccination remained associated with a reduced risk of SARS-CoV-2-transmission.

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Braeye et al. (2023) studied this question.

synapsesocial.com/papers/69d857d28cb8f39931ae30eb https://doi.org/10.1016/j.vaccine.2023.03.069

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