The United States on Friday surpassed 300,000 daily coronavirus cases, the second alarming record this week. The number, which roughly equates to the population of St. Louis, Pittsburgh or Cincinnati, comes about two months after the country reported 100,000 coronavirus cases a day for the first time, and one day after more than 4,000 people died from the virus, also a record.

The United States has reported 21.8 million infections and 367,458 deaths.

Here are some significant developments:

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