Novavax scores narrower Covid vaccine approval
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The FDA plans to require new clinical trials for approval of annual COVID-19 boosters for healthy Americans under 65.
WASHINGTON — Robert F. Kennedy Jr. clinched the political support needed to become the nation’s top health official by pledging to work within the decades-old federal system for approval and use of vaccines. Yet his regulators are promising big changes that cloud the outlook for what shots might even be available.