The final crucial question: to what extent do children spread the coronavirus once infected? “If you look at the peer-reviewed literature, it’s very mixed. The simple answer is we don’t know,” says Jeffrey Shaman, an infectious diseases expert at Columbia University. A nine-year-old boy with coronavirus in the French Alps in February did not transmit the virus to anyone else despite exposure to more than 170 people, including close contact within schools. However, we shouldn’t read too much into a study of one. On the other hand, researchers from Berlin University tested 3,712 covid-19 patients, 127 of whom were under 20, and concluded that children can carry the same viral load as adults, which seems to correlate with infectiousness.
One of the biggest fears is that a child could pick up the coronavirus at school and then bring it home to Grandma. “The risk to the kids is low, and it’s not bad for me or my partner, but I do worry about them going back to school and then seeing my parents,” says Kirsten Minshall, a father of two boys aged 9 and 11 who lives in a seaside town in Kent in the UK.