By Gerry Smith, Michelle Amponsah, Bloomberg News

After Robert F. Kennedy Jr. became the nation’s top health official in February, pediatrician Jeff Couchman started getting a lot of questions from worried parents.

“They’d ask: ‘Are vaccines going to be available? Can we give my kid every possible shot today just to make sure?’” said Couchman, who practices at Mesquite Pediatrics in Tucson, Arizona.

So, for the first time, Couchman and his colleagues have started offering vaccines on an accelerated schedule. They’re giving a second dose of the MMR vaccine to prevent measles, mumps and rubella as early as 15 months of age, though it’s not typically recommended until age 4. And they’re offering shots to prevent HPV, a common sexually transmitted infection that can cause cancer, starting a

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