St. Louis County saw a spike in COVID-19 cases in teens over the past week.

COVID-19 cases in St. Louis County in school-age students age 9 and under recorded only 10 new cases in the past week. While those ages 10-14 had 17 new cases and those ages 15-19 had 13 new cases.

Statewide, COVID-19 cases over the past week were 159 for age 4 and under; 249 for ages 5-9; 391 for ages 10-14; and 593 for ages 15-19.

The Centers for Disease Control and Prevention-verified 14-day case rates per 10,000 residents around the Northland for Feb. 7-20 were:

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  • 20.84 in Aitkin County.

  • 10.41 in Carlton County.

  • 3.77 in Cook County.

  • 21.9 in Itasca County.

  • 34.06 in Lake County.

  • 11.75 in St. Louis County.

  • 10.8 in the Duluth area.

  • 13.9 in Central/Southern St. Louis County.

  • 9.9 in Northern St. Louis County.

The 14-day case rates are used as guidance for school districts when choosing the right learning model for middle and high school students. Elementary students are allowed to return to in-person learning five days a week starting Jan. 18 regardless of these numbers.

According to Essentia Health’s COVID-19 Regional Projections dashboard, the county 14-day case rates per 10,000 residents as of March 3 were:

  • 22.6 in Aitkin County.

  • 10 in Carlton County.

  • Zero in Cook County.

  • 25.1 in Itasca County.

  • 30 in Lake County.

  • 13.4 in St. Louis County.

COVID-19 in school buildings

Sixteen school buildings were added to the Minnesota Department of Health’s outbreak list Thursday as middle and high school students head back to the classroom all over the state.

A school building is put on the list if it reports five or more confirmed cases of COVID-19 in students or staff who were in a building while infectious during a two-week reporting period. The building is removed after 28 days of no new positive tests.

No Northland schools were added or removed from the list.

Grand Rapids High School, added Oct. 8, still remains on the outbreak list, as well as Merritt Elementary in Mountain Iron, added Feb. 4, and Hermantown High School, added Feb. 11.

In addition to the 16 school buildings added to the list Thursday, four were removed for a total of 82 buildings remaining on the list.

From Feb. 21-27, there were 550 more positive COVID-19 cases in schools statewide, with 145 new cases among staff and 405 new cases among students. The state reported nine staff members were hospitalized with one spending time in the ICU. No students were hospitalized last week.

From Feb. 14-27, 365 school buildings reported one confirmed case of COVID-19, 147 reported two to four confirmed cases and 30 reported more than five.