Blue Cross Blue Shield Association warns that millions of children have missed routine vaccinations this year, which threatens to leave communities at risk of highly contagious diseases like polio, measles and whooping cough. BCBSA compared data from January through September of this year to the same period in 2019. The data show a 26% decrease in measles and whooping cough vaccinations and a 16% decrease in polio vaccinations. As a result, BCBSA estimates that the vaccination rate for measles in...