In a four-page letter to WHO Director-General Tedros Ghebreyesus, Trump set out what he called “repeated missteps” by the organisation.
Trump claimed that the WHO shares the responsibility for a large number of deaths in the crisis.
He charged that mismanagement on the part of the WHO and reliance on information from China had dramatically worsened the epidemic and spread it globally.
Trump said he would make a temporary freeze of funding permanent and might also reconsider the U.S. membership of the organisation at the end of the 30-day deadline if he saw no improvements.
“The only way forward for the WHO is if it can actually demonstrate independence from China,’’ the U.S. president asserted.
He said discussions with the organisation on how to reform the WHO had already begun.
“But action is needed quickly. We do not have time to waste.’’
“I cannot allow American taxpayer dollars to continue to finance an organisation that, in its present state, is so clearly not serving America’s interests,’’ Trump concluded.
The U.S. president faced international criticism when he announced in April he would be halting funding to the WHO while a 60-day to 90-day review took place.
He has also faced criticism over how the White House initially responded to the virus.
Trump has repeatedly accused the WHO of failing in its response to the coronavirus pandemic.
He has said the U.S. taxpayers provide between $400 million and $500 million a year to the organisation.
That funding is largely appropriated by Congress.
Trump’s criticisms of the WHO echo some experts, who say the organisation relied too heavily on information from China in the initial stages of the outbreak.