Are children the biggest Covid-19 spreaders?

BBC News — The largest contact tracing study to date emphasizes the huge role that superspreading events play on diseases transmission; while 71% of the infected persons may not end up infecting others, a small percentage of those infected could be responsible for up to 60% of the infections.  Dr. Ramanan Laxminarayan, director of CDDEP, elaborates on these findings in ‘Science in Action’ program at BBC News.