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New search published Tuesday by the US Centers for Disease Control and Prevention (CDC) suggests the risk of COVID-19 spreading in classrooms is relatively low, adding new questions about the continued shutdown of in-person education Across the country.
Published in the medical journal JAMA, the researchers discuss the results of several studies examining exposure to COVID-19 in children under 18. A case-control study in Mississippi.
Out of 397 participants, 154 were diagnosed with COVID-19 infection. Attending close social gatherings or interacting with members outside their home was a major cause of infection, but not attending school in person.
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Similar results were recorded when examining 11 school districts in North Carolina, with 90,000 students and staff occupying classrooms for nine weeks.
Researchers found that intra-school transmissions were rare, with only 32 COVID-19 infections linked to school exposure. A much larger number of infections, 773, were linked to other community sources of transmission.
Another report from Wisconsin showed low transmission among 17 K-12 schools – as long as students and teachers wore masks.
“Investigators concluded that these data, along with the observation that infection rates among teachers and non-teachers were generally similar, indicated that schools were not associated with accelerated community transmission,” wrote Researchers.
However, other reports outside of the United States recognize outbreaks that have occurred in schools. Contributing factors were overcrowded classrooms, use of a non-universal face mask, and air recirculation in closed environments.
Many American schools that have chosen to reopen have imposed public health precautions and have worked to reduce class sizes in order to reduce situations of overcrowding indoors.
President Biden ad new guidelines with the US Department of Education and the Department of Health and Human Services to open schools at the K-8 level in approximately 100 days.
Biden has asked Congress for about $ 130 billion in funding for K-12 schools to cover the costs of reopening and to support teachers and dismissed professors.
Meanwhile, CDC researchers conclude that while educational settings have a low risk of transmission, living communities clustered together, namely college dorms, have higher levels of risk of transmission of COVID-19.
A major contributing factor that will support the reopening of schools will be to reduce transmission outside the classroom, i.e. to refrain from being in crowded public spaces and to follow public health measures. .
“All the mitigation measures recommended in schools must continue: require universal use of a face mask, increase physical distance by de-densifying [sic] classrooms and common areas, using hybrid presence models when necessary to limit the total number of contacts and avoid overcrowding, increase ambient air ventilation and expand screening tests to identify and isolate quickly asymptomatic infected people ”, concluded the authors.
Additionally, while carefully designed classroom environments may boast a low rate of transmission of COVID-19, other school-based activities, including sports, still carry high risk of epidemics.
“With 2 vaccines now being distributed under emergency use authorizations and more vaccine options expected to be available in the coming months, there is a lot of hope on the horizon for a safer environment. for schools and school-related sports activities during the 2021/22 school year. “, Predict the authors of the report. “Committing today to adopt policies that prevent the transmission of SARS-CoV-2 in communities and schools will help ensure the future social and academic well-being of all students and their education.”
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