For all those people demanding to open the schools, this is another indication that they are delusional as to the impact of this action:

In the heated debate over reopening schools, one burning question has been whether and how efficiently children can spread the virus to others.

A large new study from South Korea offers an answer: Children younger than 10 transmit to others much less often than adults do, but the risk is not zero. And those between the ages of 10 and 19 can spread the virus at least as well as adults do.

The findings suggest that as schools reopen, communities will see clusters of infection take root that include children of all ages, several experts cautioned.

………

Several studies from Europe and Asia have suggested that young children are less likely to get infected and to spread the virus. But most of those studies were small and flawed, said Dr. Ashish Jha, director of the Harvard Global Health Institute.

The new study “is very carefully done, it’s systematic and looks at a very large population,” Dr. Jha said. “It’s one of the best studies we’ve had to date on this issue.”

In the places pushing hardest to open schools, areas where infections are exploding, opening schools will be a complete disaster.