COVID-19 transmission low in schools if proper protocols followed; new study says

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A girl wears a face mask as students sit in a classroom of the Petri primary school in Dortmund, western Germany, on June 15, 2020 amid the novel coronavirus COVID-19 pandemic. – From June 15, 2020, all children of primary school age in the western federal state of North Rhine-Westphalia will once again be attending regular daily classes until the summer holidays. The distance rules and compulsory mouthguards are no longer applicable. (Photo by Ina FASSBENDER / AFP) (Photo by INA FASSBENDER/AFP via Getty Images)

ST. LOUIS, Mo.– The spread of COVID-19 in schools is rare if proper mitigation strategies are followed, that’s according to a pilot study done at Missouri schools.

The study found wearing masks, social distancing, and frequent hand-washing have kept in-school COVID-19 transmission low.

The study, which included two Missouri school districts and other state and federal departments, was aimed at identifying ways to keep elementary and secondary schools open and safe during the pandemic.

The findings of the study were published today, March 19, in the CDC’s journal of Morbidity and Mortality Weekly report. Washington University School of Medicine in St. Louis was part of the pilot study and released the findings in a press release.

The pilot study involved 57 schools in the Pattonville School District in St. Louis County and the Springfield Public School District in Greene County. Two private schools in St. Louis County also participated.

All schools in the pilot study required students, teachers, staff and visitors to wear masks on campus or buses among other safety measures.

The study included 193 people at 22 of those schools. It was conducted during the first two weeks of December.

The study found 37 participants tested positive for COVID-19. Among those who tested positive, 24 of them were students and 13 were teachers or staff members.

The study also included 156 of the COVID positive people’s close contacts. 137 of them were students and 19 were teachers of staff members.

Of the close contacts who agreed to be tested, only two tested positive for COVID indicating probable school-based, secondary transmission of COVID-19.

“The pilot study demonstrates low transmission in schools and no student-to-teacher transmission — and this was during the height of the pandemic in December, with high rates of community spread,” said Jason Newland, MD, in a press release. He is a Washington University professor who helped lead the pilot program with the CDC.

The study also points out that the Springfield schools followed modified quarantine protocols, allowing some close contacts of positive individuals to remain in school.

The study is part of a larger, ongoing collaboration involving the CDC, Washington University School of Medicine in St. Louis, the Missouri Department of Health and Senior Services, the Missouri Department of Elementary and Secondary Education, St. Louis University, St. Louis and Springfield-Greene County health departments as well as several school districts in those two counties.

The larger study is examining the COVID-19 prevention strategies and quarantine policies. The researchers are also going into classrooms to measure the distance between desks to evaluate whether the 6-foot social distancing rule can be relaxed.

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