President Donald Trump’s decision to exit the World Health Organization means the U.N. agency is losing its biggest funder.

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.

Ooh, that’s a big one,” Donald Trump said Monday as he signed an executive order – one of dozens during his first hours as president – to withdraw the United States from the World Health Organization.

World Health Organization chief says agency already cutting back on hiring and travel with Trump withdrawal set to hit funding.

President Donald Trump has used one of the flurry of executive actions that he issued on his first day back in the White House to begin the process of withdrawing the U.S. from the World Health Organi

President Donald Trump said on Saturday he may consider rejoining the World Health Organization, days after ordering a U.S. exit from the global health agency over what he described as a mishandling of the COVID-19 pandemic and other international health crises.

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 U.S. has traditionally been the most generous benefactor of the WHO. A Trump executive order to cut ties with the WHO could pose a threat to global public health.

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Founded in 2023, PHTI is an offshoot of the nonprofit Peterson Center on Healthcare, which aims to lower health care costs. It was founded by Peter G. Peterson, the late billionaire and former secretary of commerce for President Richard Nixon. PHTI helps health systems evaluate their technology to reduce health care spending.

President Trump’s decision to pull out of the international health agency could deprive the United States of crucial scientific data and lessen the country’s influence in setting a global health agenda.