If we align the two, even when 100% of the population is vaccinated, the measles can still be spread by the 5% who did not respond to full vaccination.
Vaccination needs to be treated as the complex issue it is for countries where it is no longer a life-or-death easy decision. It does not need to be used as a tool for class warfare or to terrorize a populace with tales of epidemics that are more over-reporting than substance.
Their response is to blame parents who have not kept vaccine records current. A more comprehensive look at the periodic outbreak issue would be to examine the reality that vaccination will never be 100% effective and to focus our attention on areas of the world where measles is widespread, epidemic, and deadly