Natural immunity amongst the unvaccinated. A distinction that doesn't seem to have been noted in the article.
From the study methods:
Three national, matched, retrospective cohort studies were conducted to compare incidence of SARS-CoV-2 infection and COVID-19 severity among unvaccinated persons with a documented SARS-CoV-2 primary infection, to incidence among those infection-naïve and unvaccinated
Natural immunity amongst the unvaccinated. A distinction that doesn't seem to have been noted in the article.
From the study methods:
> Three national, matched, retrospective cohort studies were conducted to compare incidence of SARS-CoV-2 infection and COVID-19 severity among **unvaccinated** persons with a documented SARS-CoV-2 primary infection, to incidence among those infection-naïve and **unvaccinated**
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