Vaccinations of adults had been on a steep decline; they rose again soon after the CDC announcement. “This shows incentives matter,” Jonathan Reiner, professor of medicine and surgery at George Washington University School of Medicine, told CNN. No kidding. So why did it take the CDC so long to offer such an obvious one, when vaccines rolled out in December? The agency is absurdly fearful of putting a foot wrong — and that hesitancy has harmed the nation all pandemic long. The $7 billion bureau, once deemed the world’s top public-health agency, now desperately needs an overhaul.