a) The death to cases ratio is much lower (and yes there could be other factors contributing to this outside of the vaccine) b) "Among those aged 60 and up, the rate of serious cases per capita was more than 15 times greater for the unvaccinated than for the vaccinated." (https://www.timesofisrael.com/daily-covid-tally-hits-new-record-as-serious-cases-continue-to-drop/) c) Remember it's 61% of the entire population who are vaccinated. The 80%+ figure is relating to those who are eligible to be vaccinated - but the virus isn't going to discriminate between who is eligible and who isn't.
