(FILES) In this file photo taken on April 15, 2020 shows a sign of the World Health Organization (WHO) at the entrance of their headquarters in Geneva amid the COVID-19 outbreak, caused by the novel coronavirus. - President Donald Trump said May 29, 2020, he was breaking off US ties with the World Health Organization, which he says failed to do enough to combat the initial spread of the novel coronavirus. (Photo by Fabrice COFFRINI / AFP)