The African Union expressed dismay Wednesday over President Donald Trump’s decision to withdraw the United States from the World Health Organization, urging his administration to reconsider.

African Union Commission Chairman Moussa Faki Mahamat said in a statement he was “dismayed to learn of the US government’s announcement to withdraw” from the Geneva-based WHO.

Washington is easily the biggest financial contributor to the organisation and the pullout comes as Africa faces a range of health crises, including recent outbreaks of mpox and Marburg viruses.

“Now more than ever, the world depends on WHO to carry out its mandate to ensure global public health security as a shared common good,” Moussa Faki said, adding he hopes “the US government will reconsider its decision”.

He said Washington was an early supporter of the Africa CDC, the African Union’s health watchdog which works with the WHO to counter present and emerging pandemics.