What the U.S. Withdrawal from the World Health Organization Means

On January 22, 2026, the United States officially completed its withdrawal from the World Health Organization (WHO), the international agency that has coordinated global public health efforts since 1948. This ended more than 78 years of U.S. participation in an organization that has helped lead responses to pandemics, outbreaks, and health crises around the world. (TIME)

This decision is one of the most significant shifts in U.S. foreign policy in recent decades because it affects not just diplomacy, but how the world deals with disease, health information, and global cooperation.

What Is the World Health Organization (WHO)?

The WHO is a specialized agency of the United Nations created after World War II to help countries work together on public health, including disease tracking, emergency response, vaccination programs, and health standards. Membership gives countries a central role in global decisions about how health emergencies are managed and how information is shared. (World Health Organization)

For decades, the WHO has:

• Led global responses to outbreaks like, COVID-19, Ebola, and Zika

• Coordinated international disease surveillance

• Helped set guidelines for vaccines and treatments

• Supported lower-income countries with training and resources(World Health Organization)

Why Did the U.S. Leave?

The Government’s Explanation

According to official statements from U.S. health agencies, the withdrawal stemmed from concerns that the WHO:

• Mismanaged the response to the COVID-19 pandemic

• Failed to reform governance, transparency, and independence

• Showed inappropriate political influence in key decisions(CDC)

An executive order signed on January 20, 2025 formally began the withdrawal process, and the U.S. stopped funding and pulled personnel from WHO offices as part of the transition. (The White House)

Political Context

This was not the first time a U.S. president attempted to leave the WHO. A similar effort began during the COVID-19 pandemic, during Trump's first term, but was reversed later. However, the 2025 withdrawal carried through the required one-year notice period and became official in 2026. (CDC)

Immediate Consequences of Withdrawal

Loss of Funding and Influence

Before leaving, the United States was historically the largest funder of the WHO, contributing both required dues and significant voluntary support. This funding helped sustain WHO programs around the world. Losing U.S. financial support creates a major budget gap for the organization. (Reuters)

End of Formal Participation

With withdrawal complete:

• The U.S. no longer has voting rights at the World Health Assembly

• U.S. representatives are no longer on WHO committees or advisory groups

• The U.S. does not officially participate in WHO decision-making(CDC)

While the U.S. government says it will work with other countries and organizations to fill gaps, this does not replace formal WHO membership. (CDC)

What This Means for Public Health Cooperation

Disease Surveillance and Data Sharing

One of the WHO’s most important roles is global disease surveillance, g

athering and sharing information about outbreaks before they spread widely. By leaving, the United States loses direct access to some of this coordinated data, which experts say could slow responses to emerging threats. (Independent United Nations Watch)

Without WHO membership, the U.S. may have to rely on bilateral agreements with other nations or smaller networks to get similar information. These agreements may not be as comprehensive. (CDC)

Global Health Initiatives

The WHO runs programs that support vaccine campaigns, emergency response teams, and disease prevention efforts, especially in poorer countries that lack strong health systems. Reduced WHO capacity may weaken these programs and could lead to increased disease spread globally. (ProCapitas)

Arguments Supporters Use for Leaving

Supporters of the withdrawal claim that:

1. The WHO failed to act independently and boldly during the COVID-19 pandemic. (CDC)

2. The U.S. can protect its own health and lead global health efforts through direct bilateral partnerships, independent of the WHO. (CDC)

3. Ending formal membership reduces U.S. financial obligations to an organization they believe lacks accountability. (HHS.gov)

For supporters, withdrawal represents a chance for the U.S. to focus on national health security first.

Arguments Critics Raise

Public health experts and global health advocates have warned that withdrawal could:

Weaken Global Pandemic Preparedness

Diseases can spread quickly between countries. Experts argue that the WHO’s early warning systems help stop outbreaks before they become global threats, and withdrawal reduces U.S. access to these systems. (Independent United Nations Watch)

Reduce Global Coordination

Without U.S. leadership at the WHO, other countries, including China, Russia, or regional coalitions, may fill the leadership gap in ways that don’t align with U.S. public health priorities. (Independent United Nations Watch)

Hurt Vulnerable Populations

Health inequalities could grow if WHO programs lose funding and capacity, making it harder to combat diseases in poorer regions, diseases that can eventually reach all countries, including the U.S. (ProCapitas)

Critics argue that improving the WHO from the inside would be more effective than leaving it entirely. (Independent United Nations Watch)

Broader Impacts: A Shift in Global Cooperation

The U.S. withdrawal highlights a broader trend in world politics: debates over multilateralism versus national sovereignty. Leaving the WHO is more than a health decision; it signals a retreat from some long-standing forms of international cooperation. (Independent United Nations Watch)

Some countries and subnational actors have responded in creative ways. For example, California announced it will join the WHO’s Global Outbreak Alert & Response Network as an independent participant, showing that cooperation can continue in new forms even without formal U.S. membership. (Reuters)