Low uptake may reflect barriers—misinformation, access or shifting insurance coverage—not simply waning need.

Health secretary Robert F. Kennedy Jr. had previously said the U.S. would find the cause of autism by September.

Proposed changes to the vaccine approval process violate ethical and scientific principles.

Federal health officials will no longer routinely approve annual COVID-19 shots for younger adults and children who are healthy

U.S. Rep. Mark Pocan (D-Wis.) asked Kennedy during a House Appropriations Committee hearing on Wednesday whether he would choose to vaccinate his children against measles. Kennedy, a longtime vaccine skeptic, dodged the question, then stated that Americans should not be taking “medical advice” from him.

The Food and Drug Administration says it has decided to continue approving COVID-19 vaccine updates for seniors and others at higher risk of severe disease, but will require vaccine makers to conduct major new clinical trials before approving them for wider use.

Kennedy Jr. misleadingly claimed that Europe doesn ... Kennedy, a longtime anti-vaccine advocate, refused to definitively say when asked by Rep. Mark Pocan, a Democrat of Wisconsin, whether ...

The US Food and Drug Administration will now require Covid-19 vaccines from Pfizer/BioNTech and Moderna to use expanded warning labels with more information about the risk of a rare heart condition after vaccination.

President Donald Trump's tax cut and spending bill faces a critical stress test on Wednesday as Republicans in the U.S. House of Representatives try to overcome internal divisions about cuts to the Medicaid health program and tax breaks in high-cost coastal states.

The FDA will encourage new clinical trials on the widely used vaccines before approving them for children and healthy adults. The requirements could cost drugmakers tens of millions of dollars and are likely to leave boosters largely out of reach for hundreds of millions of Americans this fall.