Nicholas Davies, who co-authored the research said the study did look at a variety of scenarios in which children may be carrying the virus unwittingly.
"We were not able to estimate exactly how infectious asymptomatic cases more generally are compared to symptomatic cases," said Nicholas Davies.
People under the age of 20 are half as likely to contract Covid-19 than the rest of the population, according to new modelling released on Tuesday that suggests four out of five infected young people show no symptoms.
The research, published in the Nature Medicine Journal, could help inform the next moves of governments under pressure to reopen schools and colleges shuttered since the start of the pandemic.
