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Graham Vincent's avatar

And recognised you are! Feel-good day, today.

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Bill's avatar

They still did but give you enough credit. That “3,410 suspected but unconfirmed cases lost to follow-up, divided almost evenly between the two groups” is more important than the whole study. If it is 53% vaccinated and 47% unvaccinated, there is negative effectiveness, and if there are definition and timing issues at play it could be 70% of the recently vaccinated or partially vaccinated conveniently and intentionally lost to follow-up. Reclassification of the vaccination status of hospitalized patients at 2 or 3 major hospitals in December 2019-March 2020 would probably be the best way to approximate that number. Many hospitals configured their intake software so that someone was was positive for Covid-19 was declared unvaccinated or vaccine status unknown, requiring a manual override to enter a Covid positive patient as fully vaccinated according to testimony from hundreds of nurses.

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