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The coronavirus could be spreading uncontrolled in 24 states in the U.S., particularly in the South and Midwest, according to new research that is yet to be peer-reviewed, which highlights the risk of a second wave of infections in places that reopen too quickly or without sufficient precautions.

More than 94,000 people have died from covid-19 in the United States, where the number of confirmed cases is approaching 1.6 million, according to tracking by The Washington Post.

Here are some significant developments:

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