Testing if higher contact among vaccinated can be a mechanism for observed negative vaccine effectiveness.
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DOI: 10.1093/aje/kwad055
Abstract: Evidence from early observational studies suggested negative vaccine effectiveness (${V}_{Eff}$) for the SARS-CoV-2 Omicron variant. Since true ${V}_{Eff}$ is unlikely to be negative, we explored how differences in contact among vaccinated persons (e.g. potentially from… read more here.
Keywords: contact; negative vaccine; vaccine; eff ... See more keywords