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.

President Donald Trump signed an executive order that would begin the process of removing the U.S. from the World Health Organization. Here's why.

Much attention has rightly been placed on how to fill the World Health Organization’s funding gap if and when the US withdraws. Kent Buse and colleagues argue that President Trump’s idea to establish a parallel structure is equally insidious as withdrawing from WHO Some things are much better done together,

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.

One of President Trump’s first executive orders removes the U.S. from the global health organization, which experts say is “cataclysmic.”