President-elect Donald Trump has nominated Robert F. Kennedy Jr. for Secretary of Health and Human Services, alarming public health officials concerned about his anti-vaccine stance and lack of scientific credentials. Kennedy’s proposed oversight of agencies like the CDC, FDA, and NIH is feared to hinder public health initiatives at a time of rising infectious diseases and misinformation. While he has expressed intentions to address chronic disease and food safety, experts worry his agenda could undermine vaccine confidence and necessary regulations. His confirmation is subject to Senate approval, and Trump may explore recess appointments to expedite the process.