US Withdrawal from the World Health Organization — Dismantling Global Pandemic Preparedness

What Happened

On January 20, 2025, President Trump signed Executive Order 14155 directing US withdrawal from the World Health Organization. The WHO Constitution requires a one-year notice period, and the withdrawal became effective on January 22, 2026.

The United States had been the WHO's largest single funder, responsible for 22% of mandatory contributions during the 2024-2025 biennium. The WHO's most recent two-year budget is $6.8 billion. The loss of US funding has forced the WHO to announce plans to cut approximately 2,300 positions — a quarter of its entire workforce — by summer 2026.

What the US Loses

The withdrawal removes the United States from:

• The Global Influenza Surveillance and Response System: The US will no longer participate in the network that tracks circulating flu strains and matches them to vaccines. This directly affects the ability to prepare for seasonal influenza and pandemic influenza threats.
• Disease outbreak notification networks: The WHO's International Health Regulations framework is the backbone of global disease surveillance. The US loses real-time access to this system.
• Joint response capacity: The US-WHO partnership has been critical for responding to Ebola outbreaks in Africa, the global mpox emergency, and the Marburg virus outbreak in Rwanda and Ethiopia. These partnerships end.
• Influence on global health policy: The US had outsized influence within the WHO as its largest funder. That influence now passes to other member states, including China (the second-largest contributor at 16%).

What the World Loses

The WHO warned in a detailed rebuttal that the US withdrawal "risks global safety." Low- and middle-income countries that rely on WHO-supported health programs — for vaccination, disease surveillance, maternal health, tuberculosis treatment, and more — face severe disruptions as the organization cuts a quarter of its workforce.

The Infectious Diseases Society of America and Johns Hopkins Bloomberg School of Public Health both warned that the withdrawal undermines not only global health but the US's own capacity to detect and respond to emerging pandemics.

Legal Analysis

1. International Health Regulations (2005): The IHR framework establishes a global system for disease notification and coordinated response. US withdrawal degrades this system's capacity and violates the spirit of shared responsibility for global health security.
2. ICESCR Article 12: The right to health includes the obligation to take steps for "the prevention, treatment and control of epidemic, endemic, occupational and other diseases." Withdrawing from the primary international body coordinating this work is inconsistent with this obligation.
3. WHO Constitution: The preamble establishes that "the health of all peoples is fundamental to the attainment of peace and security and is dependent upon the fullest co-operation of individuals and States." Withdrawal by the largest funder fundamentally undermines this cooperative architecture.

Why This Is Classified Major with Enabling Classification

• WHO funding crisis: The loss of the largest single funder forces a 25% workforce reduction, degrading global health capacity across every program.
• Surveillance gap: Leaving the Global Influenza Surveillance and Response System creates a gap in the US's ability to prepare for influenza pandemics — the category of threat most likely to produce the next major pandemic.
• Enabling role: The withdrawal does not directly cause harm but enables it by degrading the infrastructure that prevents, detects, and responds to disease outbreaks. The harm will manifest when the next outbreak occurs and the response system is weaker than it would otherwise have been.
• Timing: The withdrawal occurs during a period of heightened zoonotic disease risk, including ongoing avian influenza (H5N1) outbreaks with documented mammalian transmission.
• Disproportionate impact: Low- and middle-income countries that depend on WHO-funded health programs bear the greatest burden of the withdrawal, despite having no role in the US decision.

International Law Considerations

1. International Health Regulations: The framework for global health security is weakened.
2. ICESCR Article 12: The obligation to prevent epidemic disease requires international cooperation.
3. WHO Constitution: The cooperative architecture for global health is undermined.
4. UDHR Article 25: The right to medical care is affected by degraded global health infrastructure.