Children are more likely to transmit Covid-19 than previously thought, according to a US study published at the weekend.
Researchers have found at least a dozen cases during a June outbreak in Utah where asymptomatic children passed on the coronavirus in school and childcare.
The research, by the Centers for Disease Control and Prevention, showed transmission occurred from children with confirmed Covid-19 to an average of 25 per cent of their contacts outside the school or child care centre.
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