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This content was originally published by MarketWatch.com - Top Stories. Original publishers retain all rights. It appears here for a limited time before automated archiving. By MarketWatch.com - Top Stories
The number of U.S. cases of the coronavirus illness COVID-19 climbed above 3.9 million on Wednesday, a day after President Donald Trump finally encouraged Americans to wear face masks in public, marking a break with his approach to the pandemic thus far.