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Katie Passaretti, medical director for infection prevention at Atrium Health in Charlotte, North Carolina.

"It's a setup for further spread of COVID," Passaretti added.

"If you were out protesting last night, you probably need to go get a COVID test this week," said Atlanta Mayor Keisha Lance Bottoms at a news briefing Sunday, "because there's still a pandemic in America that's killing black and brown people at higher numbers.".

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"People are coming from other locations to major cities," Passaretti said