It's basically vaccinated people divided by the size of the study group, where the other is vaccinated people divided by the entire population... That might not be 100% accurate, but it's essentially a study group vs the total population, and the study group quantity is determined by the manufacturer running the test...
It's basically vaccinated people divided by the size of the study group, where the other is vaccinated people divided by the entire population... That might not be 100% accurate, but it's essentially a study group vs the total population, and the study group quantity is determined by the manufacturer running the test...