White House Press Secretary Kayleigh McEnany on Monday claimed the mortality rate of the coronavirus has decreased due to, among other things, the use of the drug remdesivir — which has not been clinically proven to have any effect on the COVID-19 mortality rate.

McEnany brought up the drug in response to a question about coronavirus testing after a reporter asked about President Donald Trump’s saying that the U.S. “tested almost 40 million people, by so doing we show cases 99% of which are totally harmless.”

Most experts say that it is too soon to focus on a decrease in mortality because deaths lag behind an uptick in case numbers.

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Emily Kopp contributed to this report.