Skip to main content

CDC: Counties without school face mask requirement see sharper rise in child COVID cases

That's according to a new study that compared case rates.

Counties that do not require face masks in K-12 schools have seen a sharper increase in child COVID cases than those that do have a face mask mandate in schools.

That's according to a study released Friday by the Centers for Disease Control and Prevention (CDC), which looked at how pediatric COVID cases in counties with and without school mask mandates changed over the opening weeks of the school year.

Child COVID cases rose across the board. But those counties that did not implement a school masking requirement "experienced larger increases in pediatric COVID-19 case rates" compared to those with a mask mandate.

Related: Minneapolis Public Schools changes course, will provide meals to Edison students during distance learning

The counties with a K-12 mask mandate saw, on average, 16.32 child COVID cases per 100,000 children each day. Those without any face covering mandate saw an average of 34.85 such cases per 100,000 children daily. The study ultimately included 520 counties, about 62% of which did not have a mask requirement.

The study only looked at counties with no conflicting school requirements. So if a county was home to some schools with a mask requirement and some schools without a mask requirement, researchers simply excluded it from the analysis. 

The researchers noted a few limitations. Because this was an observational study, there cannot be any conclusions made about causation. And the case rates included all children under the age of 18 in each county not the rate just among the school-aged population.

It's possible that the disparity in COVID cases between mask-wearing and non-mask wearing schools could also be down to vaccination rates among 12-17 year olds in the counties observed.

Related: Highest county case rates in Minnesota remain in rural areas

Nonetheless, the study still calls masking "a critical strategy for preventing the transmission" of COVID in schools. 

Here in Minnesota, 95 schools over the past two weeks have recorded at least five positive COVID cases among students and staff. Overall K-12 case numbers are also rising, with 859 infections as of the week ending Sept. 18, up from 820 infections the week before.

Next Up

minneapolis police

Man fatally shot overnight in north Minneapolis

The shooting was reported around 2:20 a.m.

Screen Shot 2022-05-22 at 8.30.08 AM

Campsites closed at Voyageurs National Park due to 'historic' water levels

All backcountry trails and campsites are closed, as well as many frontcountry sites.

state capitol Minnesota

Lawmakers reach agreement on tax cuts ahead of session's end

Lawmakers announced they had reached a deal on a tax bill Saturday ahead of the looming session deadline.

281699116_10226502238438986_800951410789352812_n

Victims of daytime drive-by shooting in Robbinsdale identified

The two men died after a hail of bullets struck a vehicle.

Screen Shot 2022-05-22 at 8.14.37 AM

Source of 'loud explosion' in Brooklyn Park a mystery

The noise was investigated by police, but no source could be determined.

covid, vaccine, booster shots

COVID: All Americans over 50 advised to get a second booster

Cases, hospitalizations and deaths are on the rise again as new COVID variants emerge.

J.W. Peck (left) and Eric Galler.

2 Minnesotans inducted into White Castle's Hall of Fame

White Castle — it's what a man in Minneapolis and another in Woodbury, crave.

Screen Shot 2022-05-21 at 5.46.37 PM

Video shows officers ended pursuit before fatal crash in Anoka

The crash occurred when the driver fled police during an attempted traffic stop in Coon Rapids.

Eli Hart

6-year-old Eli Hart identified as boy found dead in car trunk

The kindergartner's father was trying to get full custody of his son.

IMG_3509

Boy found dead in trunk of car in Mound was kindergartner

"It is horrifying and difficult to process a tragedy of this magnitude, especially in our close-knit community," the superintendent wrote.

Minneapolis police

Man found yelling for help after being shot in Minneapolis

The shooting occurred on the 800 block of Elwood Avenue North at around 9:15 p.m.

Screen Shot 2022-05-21 at 9.56.21 AM

Minneapolis North principal says she was fired, district says otherwise

“MPS requires schools to follow protocols in times like that and I did not,” Friestleben said.

Related

Flickr - child wearing mask close up - Nenad Stojkovic

Just 1 MN county is below CDC's mask guidance threshold

That means a mask is recommended for everyone in public, indoor spaces.

face mask

Just 8 MN counties remain below CDC's face mask guidance threshold

Face masks are now suggested in public, indoor spaces in 90% of the state.

Flickr - face masks covid pole - Ivan Radic

83 of MN's 87 counties have high or substantial COVID transmission

Less than a month ago, just 14 counties fell into those categories.

Flickr - mask required entry sign - Chad Davis

All but 2 MN counties have 'high' level of COVID-19 transmission

Masks are strongly recommended in indoor, public spaces throughout the state.

Pexels - classroom kid teacher student raise hand - crop

MN medical groups urge K-12 schools to adopt mask requirement for all

They say it will help protect other students who can't get vaccinated or are at risk.

Flickr - woman holding face mask covid - Nenad Stojkovic

All of Minnesota is now a COVID-19 hotspot

Every county has high or substantial transmission, meaning masks are recommended.

WIkimedia commons covid vaccine moderna

3 Twin Cities counties reach 16+ vaccination rate of 80%

More than 8 in 10 residents of that age group have gotten at least one dose.