—Westend61—Getty ImagesThis fall in the U.S., as kids settle into a new school year, measles is spreading at a level not seen in 35 years. Children have died. And in just the past month, 10 children have been infected in an outbreak linked to a single daycare in Georgia. Far too many students are entering classrooms vulnerable to a highly contagious and dangerous virus. Yet there has been relative silence from the U.S. Centers for Disease Control and Prevention (CDC), the agency where I once served as a senior leader, about measles. CDC’s back-to-school messages on X have advised families abo...