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Trump cheers Pfizer Inc's experimental COVID-19 vaccine results

FILE PHOTO: U.S President Donald Trump returns to the White House after news media declared Democratic U.S. presidential nominee Joe Biden to be the winner of the 2020 U.S. presidential election, in Washington, U.S., November 7, 2020. REUTERS/Carlos Barria/File Photo

WASHINGTON (Reuters) - President Donald Trump on Monday welcomed Pfizer Ic's PFE.N experimental COVID-19 vaccine results, and the stock market boost it brought.

“STOCK MARKET UP BIG, VACCINE COMING SOON. REPORT 90% EFFECTIVE. SUCH GREAT NEWS!” he said in a Twitter post.

Reporting by Susan Heavey and Doina Chiacu; editing by Louise Heavens

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