Measles are not common nor were common for decades. There are simply not many people who have seen it.
There were also no deaths from measles for 10 years, because, well, not enough people had measles.
There were also no deaths from measles for 10 years, because, well, not enough people had measles.
It is super contagious, so yes, prior vaccines everyone got it. Mortality is 1-3 in 1000 of sick. Plus some people get deaf and some get brain damage (dunno how many now).
So, nowadays super rare, used to be normal and harmless is not a word I would use for someone that kills 1-3 in 1000 kids.