The US Senate has voted 51-44 to confirm Dr Erica Schwartz as the new director of the Centers for Disease Control and Prevention, ending an 18-month stretch of leadership instability at the embattled federal health agency. Schwartz, 54, becomes the first Senate-confirmed CDC chief since the Trump administration dismissed Susan Monarez last year over vaccine policy disagreements. Main Developments Wednesday's confirmation places Schwartz at the helm of an agency reeling from the departure of roughly 3,000 workers. Many of those who left cited frustration with vaccine policies championed by Health and Human Services Secretary Robert F Kennedy Jr, which contradict established scientific and public health consensus. Schwartz's path to confirmation was not smooth. Lawmakers had questioned whether she would prioritise scientific evidence or defer to presidential pressure. During a Senate Committee on Health, Education, Labor and Pensions hearing last month, Republican Bill Cassidy pressed her on independence; he later said conversations with Schwartz boosted his confidence in her. Read also: Southern Syria Farmers Blocked as Hunger Crisis Deepens Public health groups responded with cautious optimism mixed with clear demands. Dr Georges Benjamin of the American Public Health Association stressed the agency's urgent need for stability, experienced leadership, and a steadfast commitment to science after two years of turmoil. The National Public Health Coalition, representing current and former CDC staff, pushed Schwartz to prove her leadership will serve science rather than political whims. Background Schwartz is Trump's third nominee for the CDC directorship in just 18 months, a sign of the administration's struggle to fill the role. She holds both medical and law degrees and previously served as deputy surgeon general, giving her a blend of clinical and regulatory experience. The agency's troubles predate her nomination. The firing of Monarez last year over vaccine policy set off a wave of resignations and layoffs. Kennedy's vaccine positions, which challenge longstanding public health guidance, have been a central point of contention within the agency and among its workforce. Why It Matters The CDC faces immediate public health challenges that demand steady leadership. The US is experiencing its worst measles resurgence in three decades, childhood vaccination rates are falling, and a cyclospora outbreak is active. These crises require an agency that can act on evidence without political interference. Schwartz's tenure will be judged on whether she can rebuild morale and restore the agency's credibility. The National Public Health Coalition has explicitly warned against any directive that would undermine public safety, and her response to that pressure will shape the CDC's effectiveness. What's Next Schwartz now steps into a role where immediate tests await. She must address the measles outbreak and cyclospora spread while managing a depleted workforce. Her decisions on vaccine guidance and her ability to insulate scientific work from political pressure will be closely watched by public health experts and lawmakers alike.