The World Health Organization is shaped by its members: 194 countries that set health priorities and make agreements about how to share critical data, treatments, and vaccines during international emergencies.

More than half of Americans believe the U.S. benefits from its membership in the WHO. As of April 2024, 25% of U.S. adults say the country benefits a great deal from its membership, while about one-third say it benefits a fair amount. Conversely, 38% say the U.S. does not benefit much or at all from WHO membership.

Public health experts say the United States’ departure could cripple the WHO’s operations or leave an opening for China to assume greater control over the agency.

Public health experts say U.S. withdrawal from the W.H.O. would undermine the nation’s standing as a global health leader and make it harder to fight the next pandemic.

The ending of the commitment to the World Health Organization by the United States poses as an existential threat to the well-being of the international working class.

As part of a rash of executive orders completed on his first day back in the White House, President Donald Trump began the nation’s exit from the World Health Organization. Here, we explain how the withdrawal would work and what it would mean,