The curse of vaccines is that they’re victims of their own success. They are so successful in fact that people forget why we need them in the first place. That’s why we unfortunately need a control group.

Thankfully some people volunteer for that role …

I feel like the antivaxxers are more concentrated in the developed north because of privileges; from having better access to healthcare, better economy, and less prevalence of deadlier diseases because of colder climate. So they get treatment more easily if they need one, and don’t see nasty diseases. Meanwhile, the global south tend to believe more in vaccinations because diseases in warmer climate are more common and deadlier.