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Homehealth and scienceAmericans will need masks indoors as U.S. heads for 'dangerous fall' with...

Americans will need masks indoors as U.S. heads for ‘dangerous fall’ with surge in delta Covid cases

  • Already the dominant variant in the U.S., delta will hit the states with the lowest vaccination rates the hardest this fall.
  • Authorities in Australia, South Africa and Asia have recently reintroduced curfews or other measures to curb rising delta outbreaks.
  • High vaccination rates in the U.S. and the warm summer months have bought the country some extra time, but outbreaks across the world are giving Americans a preview of what may come this fall.

People wearing protective masks shop in a Walmart store on May 18, 2021 in Hallandale Beach, Florida.Joe Raedle | Getty Images

As the highly transmissible delta Covid variant continues to spread rapidly across the United States and elsewhere around the world, scientists and other health experts are warning that indoor mask mandates and other public health measures will likely make a return in the U.S. this fall.

The country, which just celebrated the Fourth of July with some of its first large gatherings in more than a year, is headed toward a "dangerous" fall season when delta is expected to cause another surge in new coronavirus cases, health experts say. Already the dominant variant in the U.S., delta will hit the states with the lowest vaccination rates the hardest — unless those states and businesses reintroduce mask rules, capacity limits and other public health measures that they've largely rolled back in recent months, experts say.

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