Bloomberg screenshot by Chris Matyszczyk/CNET

For the most up-to-date news and information about the coronavirus pandemic, visit the WHO website

Microsoft co-founder Bill Gates took to Twitter on Wednesday to criticize President Donald Trump's decision to halt funding of the World Health Organization. He says the organization's work is slowing the spread of COVID-19, and it can't be erased.

"Halting funding for the World Health Organization during a world health crisis is as dangerous as it sounds," Gates tweeted. "Their work is slowing the spread of COVID-19 and if that work is stopped no other organization can replace them. The world needs @WHO now more than ever."

Halting funding for the World Health Organization during a world health crisis is as dangerous as it sounds. Their work is slowing the spread of COVID-19 and if that work is stopped no other organization can replace them. The world needs @WHO now more than ever. — Bill Gates (@BillGates) April 15, 2020

Gates' foundation has been outspoken on what has to happen to stop the coronavirus pandemic. On April 2, he said the US needs a nationwide shutdown to curb the spread of the virus. Then on April 9 in an interview on CNBC, Gates said there needs to be an improvement in testing if the country wants to open back up.

Also on Wednesday, the Seattle-based Bill & Melinda Gates Foundation announced that it will be upping its investment in the battle against the coronavirus from $100 million to $250 million. The money will go toward health services in South Asia and Africa, and toward speeding up efforts to develop treatment and a vaccine for COVID-19, the respiratory disease caused by the new coronavirus.

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