OTOH, does their study include asymptomatic children, which I was at least attempting to specify in earlier remarks?
The paper referenced states viral loads were similar in asyies and symptomatics. Droplet shedding is less because of child’s lung capacity but, same as adults, risk appears highest with close and extended contact; most shedding occurring in the first week of becoming infected:
“, the absence of symptoms does not imply absence of virus excretion. In a study of people living in the Italian village of Vó, in which ca. 80% of the population were tested by RT-PCR twice within two weeks, about half the population were found to be asymptomatically infected, showing no symptoms over the observation period of two weeks, while viral loads were equivalent in symptomatic and asymptomatic patients... “