The number of confirmed global cases passed two million on Wednesday, after doubling in less than two weeks.
More than 130,000 people have died due to COVID-19, though the number is likely higher due to underreported cases and testing differences.
The US is the most impacted country in the world with more than 600,000 cases and 25,000 deaths.
Amid mounting criticism over his reaction to the outbreak, Donald Trump lashed out against the World Health Organisation (WHO) on Tuesday, saying it "failed in its basic duty" regarding the COVID-19 pandemic and announced plans to halt US payments.
The US is the world's largest contributor to the WHO, and cutting off payments will disproportionally impact emerging nations.
The organisation's director general said he regretted Trump's decision and defended their work.
"Our commitment to public health, science and to serving all the people of the world without fear or favour remains absolute," Dr Tedros Adhanom Ghebreyesus said at a press conference.
"Our mission and mandate are to work with all nations equally, without regard to the size of their populations or economies.
Watch the WHO press conference in the video player above.