Former senior officials at the Centers for Disease Control and Prevention are warning that the United States is not prepared for the next pandemic, as staff reductions, leadership vacancies, and funding cuts have weakened the agency's ability to detect and respond to infectious disease outbreaks.

Dan Jernigan, former director of the CDC's National Center for Emerging and Zoonotic Infectious Diseases — the division that studies diseases jumping from animals to humans — told The Guardian on July 22, 2026: "Are we ready for the next big pandemic? My answer is no." Debra Houry, former chief medical officer of the CDC, was equally direct: "Unfortunately, we're really moving in the wrong direction" The Guardian.

The scale of the disruption is substantial. Approximately 80% of senior leadership positions at the CDC still have no permanent officials appointed. Between 25% and 30% of the agency's entire staff are gone The Guardian. These reductions follow workforce changes that began in early 2025, when former CDC official David Fleming warned that CDC firings would have ripple effects on US infectious disease and pandemic preparedness NPR.

Specific divisions have been hit hard. The CDC lost around $40 million in funding to fight malaria and neglected tropical diseases after the Trump administration dismantled USAID, the federal agency responsible for international development and global health assistance. Of the 73 employees in the malaria and neglected tropical diseases divisions, 35 were laid off following that funding loss. The CDC's cyclospora laboratory — which tracks a parasite that causes intestinal illness from contaminated food — fell from 11 people to three staff members. Millions in funding for mRNA vaccines, described as significant for battling the next pandemic, has been cut The Guardian.

The cuts have also affected disease surveillance programs outside the CDC's core headquarters operations. Erik Svendsen, the fired former director of a CDC division, was referenced in AP reporting on CDC cuts affecting cruise ship disease outbreak monitoring. Four full-time CDC staff, including scientists, were dismissed from the division Svendsen formerly led AP.

The warnings from former officials align with observable disease trends. The US surpassed the previous year's measles tally as of July 2026. More than half of US states have passed laws limiting public health actions during emergencies, narrowing the toolkit available to state and local health departments when outbreaks occur The Guardian. The Alaska Beacon reported on July 6, 2026, that a former CDC director warned the US is vulnerable to the reintroduction of infectious diseases following Trump administration health program cuts Alaska Beacon.

The broader context here is one of compounding vulnerabilities. The loss of specialized laboratory capacity, such as the reduction of the cyclospora team from eleven to three, means fewer eyes on foodborne outbreak detection at a time when caseloads are not declining. The elimination of 35 of 73 positions in the malaria and neglected tropical diseases divisions removes institutional knowledge that does not rebuild quickly, even if funding were restored. And the $40 million loss tied to USAID's dismantlement severs a funding pipeline that connected domestic surveillance to global disease monitoring — a linkage that public health officials have long argued is essential given that pathogens do not respect borders.

The leadership vacuum adds to the staffing losses. With roughly four in five senior leadership positions unfilled on a permanent basis, the CDC faces questions about continuity of decision-making during an active outbreak response. The simultaneous passage of state-level laws restricting public health emergency powers in more than half of US states means that even where federal capacity exists, state-level authority to act may be narrower than it was during the COVID-19 pandemic.

What remains uncertain is whether these reductions represent a permanent restructuring of the US public health architecture or a temporary contraction that could be reversed under different political conditions. The officials sounding the alarm, Jernigan and Houry among them, are doing so from outside the agency, their former positions now either vacant or filled on an acting basis. Their assessments carry the weight of institutional experience but no current operational authority. The trajectory they describe, in their own words, is one of deterioration rather than stabilization.