“Abstract: The effectiveness of the BNT162b2 and ChAdOx1 vaccines against new severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections requires continuous re-evaluation, given the increasingly dominant B.1.617.2 (Delta) variant. In this study, we investigated the effectiveness of these vaccines in a large, community-based survey of randomly selected households across the United Kingdom... With B.1.617.2, infections occurring after two vaccinations had similar peak viral burden as those in unvaccinated individuals."
PCM received funding from the Wellcome Trust [110110/Z/15/Z].
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