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Twenty-one states have seen an increase in their average daily new coronavirus cases this week in comparison to the previous week, according to data compiled by The Washington Post. New infections nationwide also surged.

Alabama, Oregon and South Carolina are among the states with the biggest increases. Alabama saw a 92 percent change in its seven-day average, while Oregon’s seven-day average was up 83.8 percent and South Carolina’s was up 60.3 percent. Hospitalizations have risen as well. For example, Arkansas has seen a 120.7 percent increase in hospitalizations, from 92 cases to 203, since Memorial Day.

Health officials warn that mass gatherings of any type could worsen the spread of the virus, as the 2020 election heats up and nationwide protests against racism and police brutality stretch into their third week.

Here are some significant developments:

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