Washington (CNN) President Donald Trump and his administration have been criticized over the rate of coronavirus testing in the US, but on Wednesday, he claimed the US had done more testing than any other nation.

At a press briefing a day earlier, Dr. Deborah Birx, the White House's coronavirus response coordinator, told reporters, "We now have 370,000 tests that have been done. The majority of those -- over 220,000 in the last eight days, which, those of you who have been tracking the South Korea numbers, put us equivalent to what they did in eight weeks that we did in eight days."

Less than a day later, the President tweeted : "Just reported that the United States has done far more 'testing' than any other nation, by far! In fact, over an eight day span, the United States now does more testing than what South Korea (which has been a very successful tester) does over an eight week span." He reiterated this claim multiple times in a press briefing Wednesday evening.

Facts First: While the US has overtaken South Korea in total numbers of coronavirus tests administered, it has conducted far fewer tests per capita given the US population is more than six times larger than South Korea's.

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