Key Takeaways Novavax received Food and Drug Administration approval for its new, protein-based COVID-19 vaccine.The shot, Nuvaxovid, is designed for older adults and those between the ages of 12 and 64 who have underlying conditions that puts them at higher risk from the disease.

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.