Novavax can finally breathe a sigh of relief – at least a small one. The Food and Drug Administration approved the company's Covid-19 vaccine after more than a month of delay b

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.

The U.S. Food and Drug Administration approved Novavax's COVID-19 vaccine with age restrictions after a six-week delay.

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.