WHO’s constitution, drafted in New York, doesn’t have a clear exit method for member states. A joint resolution by Congress in 1948 outlined that the U.S. can withdraw with one year's notice. This is contingent, however, on ensuring that its financial obligations to WHO “shall be met in full for the organization’s current fiscal year.”

Switzerland has expressed “deep” regret over Trump’s decision to withdraw from the WHO, Swiss Health Minister Elisabeth Baume-Schneider said in Davos.

The World Health Organization called on the US to reconsider President Donald Trump’s decision to exit the agency, suggesting the move could undermine global health security.

President Donald Trump used one of the 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 Organization for the second time in less than five years.

Trump told world business leaders to manufacture in the US or face tariffs in his first major speech to global leaders since returning to the White House.