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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 confirmed cases of the coronavirus that causes COVID-19 climbed above 27.3 million on Tuesday with the U.S. accounting for about a quarter of that total, as a group of nine drugmakers pledged to “stand with science” in developing a vaccine.