Yes, in the past, red measles and other diseases did cause fatalities, but that was before the advent of antibiotics and it was a secondary infection that caused the fatalities.
Some of my kids had red measles and scarlet fever, and they all had mumps, chickenpox, rubella.
When I was in a small grade school at least one child died of polio and more than one had side effects of polio, so the polio vaccine seemed a good thing, at the time.
Watching videos about the cancer and autoimmune disease epidemic caused by Polio vaccine I am alarmed to think of what I have done to my children and their offspring!
When I was a child, NO CHILDREN had cancer! And the Autoimmune diseases didn't appear until AFTER the polio vaccine became routine.