Your numbers are being used to lie: You only have to get the MMR vaccine once. But you'll have to get the covid vaccines over and over and over. Just four covid jabs would make these events equally likely. But it's most likely that more than four will be required.
> But you'll have to get the covid vaccines over and over and over.
Citation please, my impression was that whether the vast majority needs a third shot ist still not decided but it's possible which is why governments prepare.
