Tara Moriarty
This mirrors what is reported by @UKHSA. Vaccine protection against severe outcomes began declining faster with BQ.1 and XBB.1.5 variants than with previous variants. This also helps explain increasing excess mortality in Canada over fall/winter. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1149407/vaccine-surveillance-report-2023-week-14.pdf
Iris Gorfinkel, M.D.
Disappointing news. Protection from SEVERE COVID-19 rapidly drops within weeks. This is still important protection for those at highest risk... but clearly NOT enough to FULLY rely on. @MoriartyLab