President Javier Milei's decision echoes that of his ally, U.S. President Donald Trump, who began the process of pulling the United States out of WHO with an executive order on his first day back in office on Jan.

President Javier Milei has ordered Argentina's withdrawal from the World Health Organization due to profound differences with the U.N. agency, a presidential spokesperson said Wednesday.

President Milei, who describes himself as an "anarcho-capitalist", has been critical of the WHO for some time but the idea of leaving the body appears to have gained traction in the days after Donald Trump signed an executive order setting in motion the US's exit from the international body.