When Robert F. Kennedy Jr. sought to be confirmed as Donald Trump’s secretary of Health and Human Services (HHS), he had to overcome a long record of fringe anti-science beliefs. He had indulged in conspiracies about chem trails, questioned whether HIV was the actual cause of AIDS, and, most notably, spread the repeatedly debunked theory that childhood vaccinations could lead to autism.

In private meetings with senators and public confirmation hearings, he downplayed that record and claimed he wasn’t anti-vaccine: “I am pro-safety,” Kennedy said in his opening statement at one hearing. “I believe vaccines have a critical role in health care.” He gave assurances to Sen. Bill Cassidy of Louisiana, an MD and one of the last Republican holdouts on his nomination, that he would not change federal vaccine guidance

But less than two months into his term, Kennedy is blocking the release of pro-vaccine data amid a widening measles outbreak even as he puts into motion long-term projects that seem set to further erode Americans’ wobbly trust in childhood vaccination. Coupled with the massive staff cuts at HHS, a weakened federal health department is being remade in Kennedy’s anti-vax, anti-science image — an overhaul that could have dangerous consequences for Americans’ health for years to come.

On Tuesday, the Trump administration began to lay off 10,000 workers across HHS, which includes the Food and Drug Administration, the Centers for Disease and Control and Prevention, and the National Institutes of Health. Combined with workers who had already departed or were laid off earlier, the department’s overall headcount is expected to shrink from 82,000 to 62,000 people.

Many rank-and-file staff were simply let go; some senior leaders were offered reassignment in different roles, sometimes in a different part of the country, according to the New York Times. Subagencies focused on substance abuse and environmental health that were previously allowed some independence are being brought under HHS’s direct supervision. Top deputies who might have clashed with Kennedy — such as the FDA’s senior vaccine official, Peter Marks, one of the architects of the highly successful Operation Warp Speed in Trump’s first term — are being forced out.

HHS touches the lives of Americans from birth to death: It oversees Medicaid and Medicare, which cover one in three Americans, it sets the standards for medical care across the health system, including vaccine schedules; and it is the biggest funder of the kind of vital medical research in the country that leads to new medical treatments.

Trump promised during the 2024 campaign to let Kennedy “go wild”; now he and his subordinates have the means to execute his vision.

Some of the effects are........

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