“What the 95 percent figure really means here is that vaccinated people in the clinical trials had a 95 percent lower risk of getting COVID-19 compared with the unvaccinated control group participants. That means that vaccinated people were 20 times less likely than the control group to get COVID-19.”
…
” There is even more good news about COVID-19 vaccine efficacy. As LiveSciencereports, the Pfizer/BioNTech, Moderna, and Johnson & Johnson clinical trials all found that their vaccines were essentially 100 percent effective in preventing severe disease six to seven weeks after trial participants had received a first/single dose. As biotech journalist Anna Nowogrodzki notes, “Zero vaccinated people in any of the trials were hospitalized or died of COVID-19 after the vaccines had fully taken effect.” Now that’s the kind of vaccine efficacy that we can all cheer.”