Children's role in spread puzzles scientists

https://www.bbc.com/news/health-53946420 

 Logic dictates that in both children and adults, people with no or few symptoms - who aren't coughing and projecting the virus into the air - are likely to be less infectious, and children generally get milder cases of the disease.

But significant numbers of asymptomatic people could still have a noticeable effect on the infection rate.

And, as Prof Viner points out, keeping schools closed is not neutral either but poses its own set of risks - to children's development, education and mental health.

While the exact risk children pose remains an open question for the moment, answering it will be vital to controlling future outbreaks.

Dr DeBiasi believes that while the "vast majority of infected children have mild or unrecognised disease," they may play an "important" role in enabling the spread of infection through communities.