COVID-19 cases rose in Minnesota and across the nation Thursday, as residents continued to stock up on fireworks and make plans to have company over during for the Independence Day holiday weekend.
The average number of newly confirmed cases of the viral respiratory infection in Minnesota has grown almost every day since June 19, according to a seven-day average of cases. Minnesota added 500 cases, giving it 37,210 total.
Nationally, the number of confirmed cases reached an all-time high, with more than 50,000 new lab-confirmed cases reported in a single day and infection curves rising in 40 of 50 states.
While some of that increase is likely because of increased testing, the Associated Press reported that 36 states are seeing an increase in the percentage of positive tests. An increasing share of positive tests is seen as a sign that overall transmissions are increasing, even if more tests are being conducted.
Minnesota Health Commissioner Jan Malcolm said this week that 3.7% of the diagnostic COVID-19 tests in the state came back positive, compared with 3.3% the week before.
Arizona, a national hot spot for COVID-19 cases, has the highest test-positivity rate in the nation, with 24% of all tests coming back positive, according to data maintained by Johns Hopkins University in Maryland. Arizona is providing about 2 tests per 1,000 residents, compared with 2.2 per 1,000 in Minnesota.
Although public health officials are closely monitoring any increase in the case-positivity rate, Malcolm said Wednesday that Minnesota's latest figure was "still very good" and speaks to how the state has managed the epidemic with testing.
Minnesota's testing has ramped up to about 12,000 per day.