| Exactly the sort of analysis you're describing was done in Hong Kong this year: [0]. The results are clear: the rate of severe or fatal cases was many times higher for unvaccinated people in all age groups. For people aged 20-59, three doses (of either mRNA or inactivated virus vaccines) reduced the chance of severe or fatal disease by nearly 99%. Efficacy actually drops with age: for >80-year-olds, there's only a 97% reduction in risk (though because the starting risk is much higher, they get a larger overall benefit). This was with Omicron, by the way. In an unprotected population, Omicron is still very destructive. 0. "Vaccine effectiveness of one, two, and three doses of BNT162b2 and CoronaVac against COVID-19 in Hong Kong: a population-based observational study", The Lancet Infectious Diseases, July 2022: https://doi.org/10.1016/S1473-3099(22)00345-0 |
Of the 39 deceased, all of whom were 50+ and 14 of whom were care home residents, only 5 were unvaccinated, 3 had received 4 shots, and 33 of the 39 had received at least 2 shots. That matches or exceeds the vaccination rate for their age demographics.