"In the late 1950s and early 1960s, right before the measles mass vaccination program was introduced, the chance of dying from measles was 1 in 10,000 or 0.01%.[3] However, the public is generally unaware of this figure as the CDC publishes case-fatality rates based on the number of reported cases only. Since it is estimated that nearly 90% of measles cases are benign and therefore not reported to the CDC, the widely publicized measles case-fatality rate is 10 times higher than what is actually found in the general population."
