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.

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.

Questions remain and reactions from world leaders are coming in after President Donald Trump signed an executive order to remove the United States as a member state of the World Health Organization. We look at the impacts.