The Senate has confirmed Susan Monarez as the new director of the Centers for Disease Control and Prevention (CDC) with a narrow vote of 51-47, making her the first director confirmed under a new 2023 law and the first without a medical degree in over 70 years.

Monarez, who has served as the acting director since January, was nominated following the withdrawal of the Trump administration's original nominee, David Weldon, MD.

Her leadership comes at a critical time as the CDC faces significant challenges, including staff cuts, low morale, and a proposed budget reduction of nearly 54% for fiscal year 2026.

The CDC has lost about a third of its staff since January 2025, raising concerns about the agency's future direction and its ability to maintain scientific integrity.

During her confirmation hearing, Monarez emphasized her commitment to restoring trust in the CDC and modernizing public health infrastructure, while also preparing for future disease outbreaks.

Despite potential conflicts with Health Secretary Robert F. Kennedy Jr., who has been criticized for his anti-vaccine stance, Monarez has publicly affirmed her support for vaccines and evidence-based public health decisions.

She has also defended the use of fluoride in water, highlighting its importance for oral health amidst criticism from Kennedy.

Monarez's approach to public health aims to distance itself from the unconventional methods of previous Trump administration officials, focusing instead on traditional, evidence-based practices.

Experts have expressed concerns about her ability to lead the CDC independently while balancing the administration's agenda, particularly in light of Kennedy's influence.

As the CDC grapples with a significant measles outbreak, Monarez's leadership will be crucial in addressing public health challenges and ensuring vaccine availability.

Monarez's confirmation marks a pivotal moment for the CDC, as it seeks to navigate political pressures while maintaining its scientific mission and addressing pressing public health issues.