Even in states where cases have been declining for weeks, bars have been a source of outbreaks. One bar in East Lansing, Michigan has been linked to more than 85 cases, according to local health officials who say that number is likely to rise.
In addition to bars, Texas shuttered tubing and rafting business on Friday to try to avoid crowds like those seen on Saturday in Arizona along the Salt River east of Phoenix.
As temperatures rose to above 100 Fahrenheit (38 Celsius), dozens of people climbed into inflatable inner tubes with coolers and took to the water to escape the heat. Very few wore masks.
Some beaches in Florida are also closing ahead of next weekend’s Fourth of July holiday, which would have drawn large crowds.
In Arizona, cases have risen by 267 per cent so far in June and jumped by a record 3,857 cases on Sunday, the eighth record-breaking increase this month. Georgia reported a record increase of 2,225 cases on Sunday. Fifteen states, including California, Florida and Texas, saw record rises in cases last week.