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Monday, July 27, 2020

Some Countries Reopened Schools. What Did They Learn About Kids and Covid? | WIRED

Some Countries Reopened Schools. What Did They Learn About Kids and Covid? | WIRED

Some Countries Reopened Schools. What Did They Learn About Kids and Covid?
Studies from around the world suggest that success depends on class size, distancing, the age of the students, and how prevalent the virus is locally


AS SCHOOL OFFICIALS try to figure out whether to open classrooms this fall, the science they need to make these tough choices is still evolving. A few things are clear: That most kids don’t become as seriously ill from Covid-19 as adults, and have much lower fatality rates. That’s according to data from the US and China published by the Centers for Disease Control.
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But the question of how likely children are to spread it to teachers, staff and other students still hasn’t been settled. One large new study from South Korea found children under the age of 10 appear to not transmit the virus very well. While it's not exactly clear why, the pediatric infectious disease experts contacted by WIRED say that it's perhaps because young children expel less air that contains the virus and are shorter, so any potential respiratory droplets are less likely to reach adults. A study published in April by researchers at the Brigham and Women’s Hospital in Boston suggests that younger kids haven’t developed the molecular keys that the virus exploits to enter the body and wreak havoc on the respiratory system, microscopic structures known as ACE2 receptors.
But older students are more like adults in their ability to transmit the virus, according to the South Korea study, which makes school opening decisions tougher. Should administrators allow only elementary students to attend in person, while middle and high schoolers stay online at home? If they do, will younger children be able to keep their masks on all day or stay six feet apart? What about the psychological effects of continued isolation on teens, who many parents believe are already racking up too much screen time during the pandemic CONTINUE READING: Some Countries Reopened Schools. What Did They Learn About Kids and Covid? | WIRED